- Published
- Source
- The Hacker News
- Filed under
- Cloud, Malware & exploits
- Vulnerabilities
- 1 CVE
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 shipped the patch for its 26.04,…
Cloud checks worth doing
- Know every account and subscription you run – the forgotten ones are where exposures hide.
- Nothing public by default: storage, keys and admin consoles closed to the internet, and code scanned for secrets.
- Turn on the provider's audit logs, and alert on new access keys, policy changes and anything made public.
The vulnerabilities in this story
CVE-2026-80521 in the NVD (opens in a new tab)
- CVSS7.8High
- CISA KEVNot listedno confirmed exploitation on CISA’s list (yet)
Exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog (CC0). Exploit prediction: EPSS by FIRST. This product uses the NVD API but is not endorsed or certified by the NVD.
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