CVE-2023-20577 - Vulnerability Details - OpenCVE

A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

No data.

No data.

No data.

References

Link	Providers
https://nvd.nist.gov/vuln/detail/CVE-2023-20577
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7009.html
https://www.cve.org/CVERecord?id=CVE-2023-20577

History

Sat, 05 Sep 2026 22:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Wed, 02 Sep 2026 20:00:00 +0000

Type	Values Removed	Values Added
Description	A vulnerability was found in AMD hardware due to a heap overflow in the SMM module. This issue could allow a local unauthenticated attacker to enable writing to SPI flash to execute arbitrary code.	A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.
Weaknesses		CWE-121

MITRE

Status: PUBLISHED

Assigner: AMD

Published: 2026-09-02T19:57:10.678Z

Updated: 2026-09-04T19:56:31.589Z

Reserved: 2022-10-27T18:53:39.757Z

Link: CVE-2023-20577

Vulnrichment

Updated: 2026-09-04T19:56:28.556Z

NVD

Status : Awaiting Analysis

Published: 2026-09-02T20:17:34.093

Modified: 2026-09-04T20:17:20.570

Link: CVE-2023-20577

Redhat

Severity : Important

Publid Date: 2024-02-13T00:00:00Z

Links: CVE-2023-20577 - Bugzilla

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-20577", "assignerOrgId": "b58fc414-a1e4-4f92-9d70-1add41838648", "state": "PUBLISHED", "assignerShortName": "AMD", "dateReserved": "2022-10-27T18:53:39.757Z", "datePublished": "2026-09-02T19:57:10.678Z", "dateUpdated": "2026-09-04T19:56:31.589Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b58fc414-a1e4-4f92-9d70-1add41838648", "shortName": "AMD", "dateUpdated": "2026-09-02T19:57:10.678Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-121", "description": "CWE-121 Stack-based buffer overflow", "type": "CWE"}]}], "affected": [{"vendor": "AMD", "product": "2nd Gen AMD EPYC\u2122 Processors", "versions": [{"status": "unaffected", "version": "RomePI 1.0.0.H"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "3rd Gen AMD EPYC\u2122 Processors", "versions": [{"status": "unaffected", "version": "MilanPI 1.0.0.C"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "4th Gen AMD EPYC\u2122 Processors", "versions": [{"status": "unaffected", "version": "GenoaPI 1.0.0.8"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Instinct\u2122 MI300A", "versions": [{"status": "unaffected", "version": "MI300 SR5 PI 1.0.0.1"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 3000 Series Desktop Processors", "versions": [{"status": "unaffected", "version": "ComboAM4v2 1.2.0.B"}, {"status": "unaffected", "version": "ComboAM4 1.0.0.B"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 5000 Series Desktop Processors", "versions": [{"status": "unaffected", "version": "ComboAM4v2 1.2.0.B"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 5000 Series Desktop Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "ComboAM4v2 1.2.0.B"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 7000 Series Processors", "versions": [{"status": "unaffected", "version": "ComboAM5 1.0.0.7b"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Athlon\u2122 3000 Series Desktop Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "ComboAM4v2 1.2.0.B"}, {"status": "unaffected", "version": "ComboAM4 1.0.0.B"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 4000 Series Desktop Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "ComboAM4v2 1.2.0.B"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Threadripper\u2122 3000 Series Processors", "versions": [{"status": "unaffected", "version": "CastlePeakPI-SP3r3 1.0.0.A"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Threadripper\u2122 PRO 3000WX Series Processors", "versions": [{"status": "unaffected", "version": "ChagallWSPI-sWRX8 1.0.0.7"}, {"status": "unaffected", "version": "CastlePeakWSPI-sWRX8 1.0.0.C"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Threadripper\u2122 PRO 5000WX Processors", "versions": [{"status": "unaffected", "version": "ChagallWSPI-sWRX8 1.0.0.7"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Athlon\u2122 3000 Series Mobile Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "PicassoPI-FP5 1.0.1.0"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Athlon\u2122 3000 Series Mobile Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "PollockPI-FT5 1.0.0.6"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 3000 Series Mobile Processor with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "PicassoPI-FP5 1.0.1.0"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 4000 Series Mobile Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "RenoirPI-FP6 1.0.0.D"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 5000 Series Mobile Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "CezannePI-FP6 1.0.0.F"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 5000 Series Mobile Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "CezannePI-FP6 1.0.0.F"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 7020 Series Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "MendocinoPI-FT6 1.0.0.6"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 6000 Series Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "RembrandtPI-FP7 1.0.0.9b"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 7035 Series Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "RembrandtPI-FP7 1.0.0.9b"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 5000 Series Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "CezannePI-FP6 1.0.0.F"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 3000 Series Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "CezannePI-FP6 1.0.0.F"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 7040 Series Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "PhoenixPI-FP8-FP7 1.0.0.2"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 7045 Series Mobile Processors", "versions": [{"status": "unaffected", "version": "DragonRangeFL1PI 1.0.0.3a"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD EPYC\u2122 Embedded 3000", "versions": [{"status": "unaffected", "version": "Snowyowl PI 1.1.0.B"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD EPYC\u2122 Embedded 7002", "versions": [{"status": "unaffected", "version": "EmbRomePI-SP3 1.0.0.B"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD EPYC\u2122 Embedded 7003", "versions": [{"status": "unaffected", "version": "EmbMilanPI-SP3 1.0.0.8"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD EPYC\u2122 Embedded 9003", "versions": [{"status": "unaffected", "version": "EmbGenoaPI-SP5 1.0.0.3"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Embedded R1000", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP5 1.2.0.A"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Embedded R2000", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP5 1.0.0.2"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Embedded 5000", "versions": [{"status": "unaffected", "version": "EmbAM4PI 1.0.0.4"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Embedded V1000", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP5 1.2.0.A"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Embedded V2000", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP6 1.0.0.9"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Embedded V3000", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP7r2 1.0.0.8"}], "defaultStatus": "affected"}], "descriptions": [{"lang": "en", "value": "A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution."}]}], "references": [{"url": "https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7009.html"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.4, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-03T03:56:43.507455Z", "id": "CVE-2023-20577", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-04T19:56:31.589Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-20577", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-03T03:56:43.507455Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-04T19:56:28.556Z"}}], "cna": {"source": {"discovery": "UNKNOWN"}, "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.4, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "AMD", "product": "2nd Gen AMD EPYC\u2122 Processors", "versions": [{"status": "unaffected", "version": "RomePI 1.0.0.H"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "3rd Gen AMD EPYC\u2122 Processors", "versions": [{"status": "unaffected", "version": "MilanPI 1.0.0.C"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "4th Gen AMD EPYC\u2122 Processors", "versions": [{"status": "unaffected", "version": "GenoaPI 1.0.0.8"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Instinct\u2122 MI300A", "versions": [{"status": "unaffected", "version": "MI300 SR5 PI 1.0.0.1"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 3000 Series Desktop Processors", "versions": [{"status": "unaffected", "version": "ComboAM4v2 1.2.0.B"}, {"status": "unaffected", "version": "ComboAM4 1.0.0.B"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 5000 Series Desktop Processors", "versions": [{"status": "unaffected", "version": "ComboAM4v2 1.2.0.B"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 5000 Series Desktop Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "ComboAM4v2 1.2.0.B"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 7000 Series Processors", "versions": [{"status": "unaffected", "version": "ComboAM5 1.0.0.7b"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Athlon\u2122 3000 Series Desktop Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "ComboAM4v2 1.2.0.B"}, {"status": "unaffected", "version": "ComboAM4 1.0.0.B"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 4000 Series Desktop Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "ComboAM4v2 1.2.0.B"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Threadripper\u2122 3000 Series Processors", "versions": [{"status": "unaffected", "version": "CastlePeakPI-SP3r3 1.0.0.A"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Threadripper\u2122 PRO 3000WX Series Processors", "versions": [{"status": "unaffected", "version": "ChagallWSPI-sWRX8 1.0.0.7"}, {"status": "unaffected", "version": "CastlePeakWSPI-sWRX8 1.0.0.C"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Threadripper\u2122 PRO 5000WX Processors", "versions": [{"status": "unaffected", "version": "ChagallWSPI-sWRX8 1.0.0.7"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Athlon\u2122 3000 Series Mobile Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "PicassoPI-FP5 1.0.1.0"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Athlon\u2122 3000 Series Mobile Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "PollockPI-FT5 1.0.0.6"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 3000 Series Mobile Processor with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "PicassoPI-FP5 1.0.1.0"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 4000 Series Mobile Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "RenoirPI-FP6 1.0.0.D"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 5000 Series Mobile Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "CezannePI-FP6 1.0.0.F"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 5000 Series Mobile Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "CezannePI-FP6 1.0.0.F"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 7020 Series Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "MendocinoPI-FT6 1.0.0.6"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 6000 Series Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "RembrandtPI-FP7 1.0.0.9b"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 7035 Series Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "RembrandtPI-FP7 1.0.0.9b"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 5000 Series Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "CezannePI-FP6 1.0.0.F"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 3000 Series Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "CezannePI-FP6 1.0.0.F"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 7040 Series Processors with Radeon\u2122 Graphics", "versions": [{"status": "unaffected", "version": "PhoenixPI-FP8-FP7 1.0.0.2"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 7045 Series Mobile Processors", "versions": [{"status": "unaffected", "version": "DragonRangeFL1PI 1.0.0.3a"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD EPYC\u2122 Embedded 3000", "versions": [{"status": "unaffected", "version": "Snowyowl PI 1.1.0.B"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD EPYC\u2122 Embedded 7002", "versions": [{"status": "unaffected", "version": "EmbRomePI-SP3 1.0.0.B"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD EPYC\u2122 Embedded 7003", "versions": [{"status": "unaffected", "version": "EmbMilanPI-SP3 1.0.0.8"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD EPYC\u2122 Embedded 9003", "versions": [{"status": "unaffected", "version": "EmbGenoaPI-SP5 1.0.0.3"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Embedded R1000", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP5 1.2.0.A"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Embedded R2000", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP5 1.0.0.2"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Embedded 5000", "versions": [{"status": "unaffected", "version": "EmbAM4PI 1.0.0.4"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Embedded V1000", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP5 1.2.0.A"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Embedded V2000", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP6 1.0.0.9"}], "defaultStatus": "affected"}, {"vendor": "AMD", "product": "AMD Ryzen\u2122 Embedded V3000", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP7r2 1.0.0.8"}], "defaultStatus": "affected"}], "references": [{"url": "https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7009.html"}], "x_generator": {"engine": "Vulnogram 1.0.5"}, "descriptions": [{"lang": "en", "value": "A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.", "supportingMedia": [{"type": "text/html", "value": "A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-121", "description": "CWE-121 Stack-based buffer overflow"}]}], "providerMetadata": {"orgId": "b58fc414-a1e4-4f92-9d70-1add41838648", "shortName": "AMD", "dateUpdated": "2026-09-02T19:57:10.678Z"}}}, "cveMetadata": {"cveId": "CVE-2023-20577", "state": "PUBLISHED", "dateUpdated": "2026-09-04T19:56:31.589Z", "dateReserved": "2022-10-27T18:53:39.757Z", "assignerOrgId": "b58fc414-a1e4-4f92-9d70-1add41838648", "datePublished": "2026-09-02T19:57:10.678Z", "assignerShortName": "AMD"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "affected", "product": "2nd Gen AMD EPYC\u2122 Processors", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "RomePI 1.0.0.H"}]}, {"defaultStatus": "affected", "product": "3rd Gen AMD EPYC\u2122 Processors", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "MilanPI 1.0.0.C"}]}, {"defaultStatus": "affected", "product": "4th Gen AMD EPYC\u2122 Processors", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "GenoaPI 1.0.0.8"}]}, {"defaultStatus": "affected", "product": "AMD Instinct\u2122 MI300A", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "MI300 SR5 PI 1.0.0.1"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 3000 Series Desktop Processors", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "ComboAM4v2 1.2.0.B"}, {"status": "unaffected", "version": "ComboAM4 1.0.0.B"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 5000 Series Desktop Processors", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "ComboAM4v2 1.2.0.B"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 5000 Series Desktop Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "ComboAM4v2 1.2.0.B"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 7000 Series Processors", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "ComboAM5 1.0.0.7b"}]}, {"defaultStatus": "affected", "product": "AMD Athlon\u2122 3000 Series Desktop Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "ComboAM4v2 1.2.0.B"}, {"status": "unaffected", "version": "ComboAM4 1.0.0.B"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 4000 Series Desktop Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "ComboAM4v2 1.2.0.B"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 Threadripper\u2122 3000 Series Processors", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "CastlePeakPI-SP3r3 1.0.0.A"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 Threadripper\u2122 PRO 3000WX Series Processors", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "ChagallWSPI-sWRX8 1.0.0.7"}, {"status": "unaffected", "version": "CastlePeakWSPI-sWRX8 1.0.0.C"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 Threadripper\u2122 PRO 5000WX Processors", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "ChagallWSPI-sWRX8 1.0.0.7"}]}, {"defaultStatus": "affected", "product": "AMD Athlon\u2122 3000 Series Mobile Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "PicassoPI-FP5 1.0.1.0"}]}, {"defaultStatus": "affected", "product": "AMD Athlon\u2122 3000 Series Mobile Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "PollockPI-FT5 1.0.0.6"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 3000 Series Mobile Processor with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "PicassoPI-FP5 1.0.1.0"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 4000 Series Mobile Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "RenoirPI-FP6 1.0.0.D"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 5000 Series Mobile Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "CezannePI-FP6 1.0.0.F"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 5000 Series Mobile Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "CezannePI-FP6 1.0.0.F"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 7020 Series Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "MendocinoPI-FT6 1.0.0.6"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 6000 Series Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "RembrandtPI-FP7 1.0.0.9b"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 7035 Series Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "RembrandtPI-FP7 1.0.0.9b"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 5000 Series Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "CezannePI-FP6 1.0.0.F"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 3000 Series Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "CezannePI-FP6 1.0.0.F"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 7040 Series Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "PhoenixPI-FP8-FP7 1.0.0.2"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 7045 Series Mobile Processors", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "DragonRangeFL1PI 1.0.0.3a"}]}, {"defaultStatus": "affected", "product": "AMD EPYC\u2122 Embedded 3000", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "Snowyowl PI 1.1.0.B"}]}, {"defaultStatus": "affected", "product": "AMD EPYC\u2122 Embedded 7002", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbRomePI-SP3 1.0.0.B"}]}, {"defaultStatus": "affected", "product": "AMD EPYC\u2122 Embedded 7003", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbMilanPI-SP3 1.0.0.8"}]}, {"defaultStatus": "affected", "product": "AMD EPYC\u2122 Embedded 9003", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbGenoaPI-SP5 1.0.0.3"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 Embedded R1000", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP5 1.2.0.A"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 Embedded R2000", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP5 1.0.0.2"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 Embedded 5000", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbAM4PI 1.0.0.4"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 Embedded V1000", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP5 1.2.0.A"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 Embedded V2000", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP6 1.0.0.9"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 Embedded V3000", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP7r2 1.0.0.8"}]}], "source": "psirt@amd.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution."}], "id": "CVE-2023-20577", "lastModified": "2026-09-04T20:17:20.570", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.4, "impactScore": 5.9, "source": "psirt@amd.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-20577", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-03T03:56:43.507455Z", "version": "2.0.3"}}]}, "published": "2026-09-02T20:17:34.093", "references": [{"source": "psirt@amd.com", "url": "https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7009.html"}], "sourceIdentifier": "psirt@amd.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-121"}], "source": "psirt@amd.com", "type": "Secondary"}]}