CVE-2026-80521
- CVSS
- —
- EPSS
- —
- CISA KEV
- Not listed
- Exploitation
- No report
- Public exploits
- None seen
- State
- Unknown
Coverage

The Hacker News
Exploit Released for Unpatched Ubuntu Linux Flaw Enabling Host-Root Container Escape
A use-after-free in the Linux kernel's AF_UNIX socket subsystem can be used to escape a container and gain root on the host, security firm DepthFirst said in research published September 22. The flaw, tracked as CVE-2026-80521 (CVSS score: 7.8), was fixed upstream on August 6, but Ubuntu has not…
What we observed
No signals recorded