What is CVE-2026-43109?

CVE-2026-43109 is a security advisory published by Microsoft Security Response Center (MSRC). x86: shadow stacks: proper error handling for mmap lock

Which CVE IDs does CVE-2026-43109 cover?

CVE-2026-43109 covers the following CVE IDs: CVE-2026-43109. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

CVE-2026-43109 has a CVSS v3 base score of 7.1, published by Microsoft Security Response Center (MSRC).

CVE-2026-43109CVSS 7.1

Vendor

Published

May 22, 2026

Last Modified

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