CVE tracker / CVE-2026-119905
CVE-2026-119905
CVE-2026-119905 is the Windows DNS Spoofing Vulnerability. Microsoft rates it Important, CVSS 4.9. It is not in CISA's Known Exploited Vulnerabilities catalog. Published November 10, 2026.
Risk summary
MediumSpoofing
4.9
CVSS v3 base
Medium
Severity
Important
Microsoft's rating
Less Likely
Microsoft: exploitation
No
In CISA KEV
Microsoft describes it: “Improper input validation in Windows DNS allows an authorized attacker to perform spoofing over a network.”
How to fix it
Microsoft lists 8 affected products and the update that fixes each:
- KB5131077 · fixed build 10.0.26100.33730
Windows Server 2025 (Server Core installation), Windows Server 2025 - KB5131080 · fixed build 10.0.26100.33822
Windows Server 2025 (Server Core installation), Windows Server 2025 - KB5131085 · fixed build 10.0.17763.9487
Windows Server 2019, Windows Server 2019 (Server Core installation) - KB5131090 · fixed build 10.0.20348.5870
Windows Server 2022 (Server Core installation), Windows Server 2022 - KB5131291 · fixed build 10.0.14393.9688
Windows Server 2016 (Server Core installation), Windows Server 2016
What Microsoft changed
- November 10, 2026: Information published.
Details
- Weakness
- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- Publicly disclosed (Microsoft)
- No
- Exploited (Microsoft)
- No
- Known exploited (CISA KEV)
- Not listed
- Published
- November 10, 2026
- Last revised
- November 10, 2026
Get told when this changes
Senserva Watch emails Microsoft security and patch alerts when something moves: a new exploitation report, a revised fix, a known issue. Free, one email address.
References
From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.