What is CVE-2026-43249?

CVE-2026-43249 is a security advisory published by Microsoft Security Response Center (MSRC). 9p/xen: protect xen_9pfs_front_free against concurrent calls

Which CVE IDs does CVE-2026-43249 cover?

CVE-2026-43249 covers the following CVE IDs: CVE-2026-43249. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-43249?

CVE-2026-43249 has a CVSS v3 base score of 8.8, published by Microsoft Security Response Center (MSRC).

CVE-2026-43249CVSS 8.8

9p/xen: protect xen_9pfs_front_free against concurrent calls

Vendor

Microsoft Security Response Center (MSRC)

Published

May 22, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-43249 →