CVE-2021-22600CISA KEVEPSS p92.3%

CVE-2021-22600Linux Kernel Privilege Escalation Vulnerability

Linux / Kernel

Description

Linux Kernel contains a flaw in the packet socket (AF_PACKET) implementation which could lead to incorrectly freeing memory. A local user could exploit this for denial-of-service (DoS) or possibly for privilege escalation.

Scoring

EPSS5.92% probability of exploitation · percentile 92.3% · 2026-06-21T12:00:28Z

CISA KEV entry

Added to KEV: 2022-04-11

(incoming)1

TypeTargetConfidenceTier
KEVEntryLinux Kernel Privilege Escalation Vulnerabilitykev-cve-2021-226000%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
Linux Kernel Use-After-Free Vulnerability
CVE
Linux Kernel Heap Out-of-Bounds Write Vulnerability
CVE
Linux Kernel Heap-Based Buffer Overflow Vulnerability
CVE
Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability
CVE
Linux Kernel Improper Authentication Vulnerability
CVE
Linux Kernel Improper Privilege Management Vulnerability
Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.