Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Metrics
Affected Vendors & Products
References
History
Thu, 16 Jul 2026 03:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Microsoft microsoft Office Ltsc 2021
Microsoft microsoft Office Ltsc 2024 Microsoft microsoft Office Ltsc For Mac 2021 Microsoft microsoft Office Ltsc For Mac 2024 Microsoft office Online Server |
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| Vendors & Products |
Microsoft microsoft Office Ltsc 2021
Microsoft microsoft Office Ltsc 2024 Microsoft microsoft Office Ltsc For Mac 2021 Microsoft microsoft Office Ltsc For Mac 2024 Microsoft office Online Server |
Wed, 15 Jul 2026 12:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Tue, 14 Jul 2026 17:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. | |
| Title | Microsoft Excel Remote Code Execution Vulnerability | |
| First Time appeared |
Microsoft
Microsoft 365 Apps Microsoft excel 2016 Microsoft office 2019 Microsoft office 2021 Microsoft office 2024 Microsoft office 365 Microsoft office Macos 2021 Microsoft office Macos 2024 |
|
| Weaknesses | CWE-122 | |
| CPEs | cpe:2.3:a:microsoft:365_apps:*:*:*:*:enterprise:*:*:* cpe:2.3:a:microsoft:excel_2016:*:*:*:*:*:*:x86:* cpe:2.3:a:microsoft:office_2019:*:*:*:*:*:*:*:* cpe:2.3:a:microsoft:office_2021:*:*:*:*:long_term_servicing_channel:*:*:* cpe:2.3:a:microsoft:office_2021:*:*:*:*:ltsc:*:*:* cpe:2.3:a:microsoft:office_2024:*:*:*:*:long_term_servicing_channel:*:*:* cpe:2.3:a:microsoft:office_365:*:*:*:*:*:macos:*:* cpe:2.3:a:microsoft:office_macos_2021:*:*:*:*:*:long_term_servicing_channel:*:* cpe:2.3:a:microsoft:office_macos_2024:*:*:*:*:*:long_term_servicing_channel:*:* |
|
| Vendors & Products |
Microsoft
Microsoft 365 Apps Microsoft excel 2016 Microsoft office 2019 Microsoft office 2021 Microsoft office 2024 Microsoft office 365 Microsoft office Macos 2021 Microsoft office Macos 2024 |
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| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: microsoft
Published: 2026-07-14T17:09:11.650Z
Updated: 2026-07-17T21:33:04.450Z
Reserved: 2026-06-17T17:37:17.983Z
Link: CVE-2026-55947
Updated: 2026-07-15T11:14:02.856Z
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