CVE detail

CVE-2021-3493 — Linux Kernel Privilege Escalation Vulnerability

Published 2022-10-20 · Modified 2022-10-20 · Source kev

HIGH

severity

CVSS-derived band

n/a

CVSS v3

0–10 scale

0.4917

EPSS probability

exploitation probability, 30d

99.0%

EPSS percentile

percentile vs all CVEs

LISTED

CISA KEV

due 2022-11-10

Description

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.

Remediation

No vendor-published fix data in our corpus for this CVE. Check the references below or the vendor's PSIRT / security advisories page.

References

cvedb.io · NVD · CISA KEV · FIRST EPSS · vendor advisories (CVE Program List v5). Informational only, no warranty — verify every remediation against the vendor advisory before acting on it. This product uses data from the NVD API but is not endorsed or certified by the NVD, CISA, FIRST.org or any vendor named. CVE® is a registered trademark of The MITRE Corporation.