CVE-2026-85939

Weak authentication in Windows Kernel allows an authorized attacker to bypass a security feature over a network.

CVSS 3.1

5.3CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-25)

CWE

CWE-1390

Published

2026-10-13

Modified

2026-10-16

Record from

the NVD, synced 2026-10-19

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85939

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