HIGHCVE-2026-20949Published Modified CNA microsoft
CVE-2026-20949: Microsoft Excel Security Feature Bypass Vulnerability
Improper access control in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.
Metrics
- CVSS v3.1
- 7.8
- Severity
- HIGH
- Fixed in
- 16.105.26011018
- Affected Products
- 5
Fix available
16.105.26011018https://aka.ms/OfficeSecurityReleases
Affected packages
- Microsoft / Microsoft 365 Apps for Enterprise< https://aka.ms/OfficeSecurityReleases (from 16.0.1)
- Microsoft / Microsoft Office LTSC 2021< https://aka.ms/OfficeSecurityReleases (from 16.0.1)
- Microsoft / Microsoft Office LTSC 2024< https://aka.ms/OfficeSecurityReleases (from 16.0.0)
- Microsoft / Microsoft Office LTSC for Mac 2021< 16.105.26011018 (from 16.0.1)
- Microsoft / Microsoft Office LTSC for Mac 2024< 16.105.26011018 (from 16.0.0)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C