CVE-2021-3493: Linux Kernel Privilege Escalation Vulnerability. The
Linux Kernel Privilege Escalation Vulnerability. The overlayfs stacking file system in Linux kernel does not properly validate the application of file capabilities against user namespaces, which could lead to privilege escalation.
- CISA KEV-listed (remediation due 2022-11-10)
- EPSS 80.0% (99.1% percentile)