LOW 3.3 Microsoft
CVE-2026-80920
io_uring: defer eventfd signaling when queued from a wakeup handler
Microsoft Security Update 2026-Sep: io_uring: defer eventfd signaling when queued from a wakeup handler
Affected Products
- azl3 kernel 6.6.150.1-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80920
- https://nvd.nist.gov/vuln/detail/CVE-2026-80920
This low severity vulnerability with a CVSS score of 3.3 was published on 2026-09-08 via Microsoft. Affected: azl3 kernel 6.6.150.1-1 on Azure Linux 3.0.
vulnfeed aggregates 12842 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.