7.0 High

Heap-based buffer overflow in Windows Client License Service allows an authorized attacker to elevate privileges locally.

CVE-2026-100201

Assessment

CVSS: 7 (v3.1)
Severity: High
EPSS: 0.31% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 13 October 2026
Last updated: 31 October 2026
Affected: Microsoft
Assigner: microsoft

CVSS vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

At the source

EUVD (ENISA)

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-100201

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Query this programmatically

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