{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-77101", "assignerOrgId": "050066fd-a2f9-4f32-ab5d-4c53f48bc333", "state": "PUBLISHED", "assignerShortName": "Commvault", "dateReserved": "2026-08-20T10:57:52.110Z", "datePublished": "2026-09-08T12:12:54.122Z", "dateUpdated": "2026-09-08T13:24:56.965Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "050066fd-a2f9-4f32-ab5d-4c53f48bc333", "shortName": "Commvault", "dateUpdated": "2026-09-08T12:12:54.122Z"}, "title": "CommServe Stack-based Buffer Overflow", "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-121: Stack-based Buffer Overflow"}]}], "affected": [{"vendor": "Commvault", "product": "Commvault Cloud", "platforms": ["Windows", "Linux"], "defaultStatus": "unknown", "versions": [{"status": "affected", "version": "11.46.0", "lessThanOrEqual": "11.46.19", "changes": [{"at": "11.46.20", "status": "unaffected"}], "versionType": "custom"}, {"status": "affected", "version": "11.44.0", "lessThanOrEqual": "11.44.19", "changes": [{"at": "11.44.20", "status": "unaffected"}], "versionType": "custom"}, {"status": "affected", "version": "11.40.0", "lessThanOrEqual": "11.40.71", "changes": [{"at": "11.40.72", "status": "unaffected"}], "versionType": "custom"}, {"status": "affected", "version": "11.36.0", "lessThanOrEqual": "11.36.122", "changes": [{"at": "11.36.123", "status": "unaffected"}], "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "CommServe contained a stack-based buffer overflow issue affecting service availability. Software customers upgrade to resolved maintenance release. Update CommServe."}], "references": [{"url": "https://documentation.commvault.com/securityadvisories/CV_2026_08_3.html"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"version": "4.0", "baseScore": 8.7, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}}], "credits": [{"lang": "en", "value": "Michael Tucker and Tan Chew Keong from the XOR team at JPMorgan Chase.", "type": "reporter"}]}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-121", "lang": "en", "description": "CWE-121 Stack-based Buffer Overflow"}]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-08T13:24:30.911215Z", "id": "CVE-2026-77101", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-08T13:24:56.965Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-77101", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-08T13:24:30.911215Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-121", "description": "CWE-121 Stack-based Buffer Overflow"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-08T13:24:53.901Z"}}], "cna": {"title": "CommServe Stack-based Buffer Overflow", "credits": [{"lang": "en", "type": "reporter", "value": "Michael Tucker and Tan Chew Keong from the XOR team at JPMorgan Chase."}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "baseScore": 8.7, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Commvault", "product": "Commvault Cloud", "versions": [{"status": "affected", "changes": [{"at": "11.46.20", "status": "unaffected"}], "version": "11.46.0", "versionType": "custom", "lessThanOrEqual": "11.46.19"}, {"status": "affected", "changes": [{"at": "11.44.20", "status": "unaffected"}], "version": "11.44.0", "versionType": "custom", "lessThanOrEqual": "11.44.19"}, {"status": "affected", "changes": [{"at": "11.40.72", "status": "unaffected"}], "version": "11.40.0", "versionType": "custom", "lessThanOrEqual": "11.40.71"}, {"status": "affected", "changes": [{"at": "11.36.123", "status": "unaffected"}], "version": "11.36.0", "versionType": "custom", "lessThanOrEqual": "11.36.122"}], "platforms": ["Windows", "Linux"], "defaultStatus": "unknown"}], "references": [{"url": "https://documentation.commvault.com/securityadvisories/CV_2026_08_3.html"}], "descriptions": [{"lang": "en", "value": "CommServe contained a stack-based buffer overflow issue affecting service availability. Software customers upgrade to resolved maintenance release. Update CommServe."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-121: Stack-based Buffer Overflow"}]}], "providerMetadata": {"orgId": "050066fd-a2f9-4f32-ab5d-4c53f48bc333", "shortName": "Commvault", "dateUpdated": "2026-09-08T12:12:54.122Z"}}}, "cveMetadata": {"cveId": "CVE-2026-77101", "state": "PUBLISHED", "dateUpdated": "2026-09-08T13:24:56.965Z", "dateReserved": "2026-08-20T10:57:52.110Z", "assignerOrgId": "050066fd-a2f9-4f32-ab5d-4c53f48bc333", "datePublished": "2026-09-08T12:12:54.122Z", "assignerShortName": "Commvault"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unknown", "platforms": ["Windows", "Linux"], "product": "Commvault Cloud", "vendor": "Commvault", "versions": [{"changes": [{"at": "11.46.20", "status": "unaffected"}], "lessThanOrEqual": "11.46.19", "status": "affected", "version": "11.46.0", "versionType": "custom"}, {"changes": [{"at": "11.44.20", "status": "unaffected"}], "lessThanOrEqual": "11.44.19", "status": "affected", "version": "11.44.0", "versionType": "custom"}, {"changes": [{"at": "11.40.72", "status": "unaffected"}], "lessThanOrEqual": "11.40.71", "status": "affected", "version": "11.40.0", "versionType": "custom"}, {"changes": [{"at": "11.36.123", "status": "unaffected"}], "lessThanOrEqual": "11.36.122", "status": "affected", "version": "11.36.0", "versionType": "custom"}]}], "source": "050066fd-a2f9-4f32-ab5d-4c53f48bc333"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:commvault:commvault:*:*:*:*:*:*:*:*", "matchCriteriaId": "7D5E9F88-DDA2-4F7E-96C8-63CE8AACF381", "versionEndExcluding": "11.36.123", "versionStartIncluding": "11.36.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:commvault:commvault:*:*:*:*:*:*:*:*", "matchCriteriaId": "F195D789-6414-4A1F-B6B2-E21035032D0A", "versionEndExcluding": "11.40.72", "versionStartIncluding": "11.40.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:commvault:commvault:*:*:*:*:*:*:*:*", "matchCriteriaId": "43942B05-3043-419D-BE53-4BC30CECB734", "versionEndExcluding": "11.44.20", "versionStartIncluding": "11.44.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:commvault:commvault:*:*:*:*:*:*:*:*", "matchCriteriaId": "1D16402F-8EBF-42ED-BC4A-8053736561D4", "versionEndExcluding": "11.46.20", "versionStartIncluding": "11.46.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*", "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1", "vulnerable": false}, {"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "CommServe contained a stack-based buffer overflow issue affecting service availability. Software customers upgrade to resolved maintenance release. Update CommServe."}], "id": "CVE-2026-77101", "lastModified": "2026-09-09T15:55:36.430", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "050066fd-a2f9-4f32-ab5d-4c53f48bc333", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-77101", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-08T13:24:30.911215Z", "version": "2.0.3"}}]}, "published": "2026-09-08T13:17:25.860", "references": [{"source": "050066fd-a2f9-4f32-ab5d-4c53f48bc333", "tags": ["Vendor Advisory"], "url": "https://documentation.commvault.com/securityadvisories/CV_2026_08_3.html"}], "sourceIdentifier": "050066fd-a2f9-4f32-ab5d-4c53f48bc333", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-121"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}