CVE-2021-3411: Linux Kernel

Medium severity, CVSS 6.7. EPSS: 0.4% chance of exploitation in the next 30 days.

A flaw was found in the Linux kernel in versions prior to 5.10. A violation of memory access was found while detecting a padding of int3 in the linking state. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Affected products

• Linux Linux Kernel: before 5.10 (fixed in 5.10)
• Red Hat Enterprise Linux: version 8.0 only

Published 2021-03-09. Last modified 2026-06-17.