CVE detail

CVE-2021-22555 — Linux Kernel Heap Out-of-Bounds Write Vulnerability

Published 2025-10-06 · Modified 2025-10-06 · Source kev

HIGH

severity

CVSS-derived band

n/a

CVSS v3

0–10 scale

0.7868

EPSS probability

exploitation probability, 30d

100.0%

EPSS percentile

percentile vs all CVEs

LISTED

CISA KEV

due 2025-10-27

Description

Linux Kernel contains a heap out-of-bounds write vulnerability that could allow an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space.

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.