A AegiFlow
HIGHCVSS 8.3KNOWN EXPLOITED

CVE-2021-22555

CVE-2021-22555 updated by NVD

Published
2025-10-06
Modified
2026-11-04
Sources
cisa-kev, nvd

Summary

A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space

References

Includes data from the CISA Known Exploited Vulnerabilities catalog.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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