VDB
msrc_CVE-2026-20940
msrc_CVE-2026-20940
PUBLISHED
CVSS 7.800000190734863 HIGH
Risk Scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.6809 | ||
| Windows 10 Version 1607 for x64-based Systems <10.0.14393.8783 | ||
| Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6491 | ||
| Windows 11 Version 23H2 for x64-based Systems <10.0.22631.6491 | ||
| Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6809 | ||
| Windows Server 2016 <10.0.14393.8783 | ||
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.23717 | ||
| Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.6491 | ||
| Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6809 | ||
| Windows Server 2016 10.0.14393.8783 | ||
| Windows Server 2019 (Server Core installation) 10.0.17763.8276 | ||
| Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.6809 | ||
| Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6809 | ||
| Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8783 | ||
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.23717 | ||
| Windows 10 Version 1607 for x64-based Systems 10.0.14393.8783 | ||
| Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6809 | ||
| Windows Server 2019 (Server Core installation) <10.0.17763.8276 | ||
| Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6491 | ||
| Windows 10 Version 1607 for 32-bit Systems <10.0.14393.8783 |
Timeline
- Jan 13, 2026 CVE Published
- Sep 7, 2026 Security Advisory
- Sep 7, 2026 Security Advisory
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20940 advisory
- https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-20940.json advisory
- https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1 url
- https://support.microsoft.com/lifecycle url
- https://www.first.org/cvss url
- https://support.microsoft.com/help/5073724 fix
- https://support.microsoft.com/help/5073455 fix
- https://support.microsoft.com/help/5073723 fix
- https://support.microsoft.com/help/5073722 fix
- https://support.microsoft.com/help/5073697 fix
- https://support.microsoft.com/help/5073700 fix
- https://support.microsoft.com/help/5073695 fix
- https://support.microsoft.com/help/5073699 fix
- https://support.microsoft.com/help/5073696 fix
- https://support.microsoft.com/help/5073698 fix
- https://support.microsoft.com/help/5073457 fix