Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Metrics
Affected Vendors & Products
References
History
Tue, 13 Jan 2026 19:15:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Tue, 13 Jan 2026 18:15:00 +0000
| Type | Values Removed | Values Added |
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| Description | Integer underflow (wrap or wraparound) 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 Macos 2021 Microsoft office Macos 2024 |
|
| Weaknesses | CWE-122 CWE-191 |
|
| 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_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 Macos 2021 Microsoft office Macos 2024 |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: microsoft
Published:
Updated: 2026-01-13T18:34:17.068Z
Reserved: 2025-12-04T20:04:16.340Z
Link: CVE-2026-20957
Updated: 2026-01-13T18:34:12.595Z
Status : Received
Published: 2026-01-13T18:16:23.627
Modified: 2026-01-13T18:16:23.627
Link: CVE-2026-20957
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OpenCVE Enrichment
No data.