Home / Vulnerabilities / CVE-2021-22600
MEDIUM SEVERITY
CVE-2021-22600 Linux · Kernel

Linux Kernel Privilege Escalation Vulnerability

Technical Severity

CVSS v3.1 Metrics

MEDIUM
6.6 / 10
Minimal Risk Critical
Vector Specification
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:H
Exploitation Likelihood

EPSS Prediction

0.15 %
Predictive Probability
Percentile Rank
36.3 th

Documented as more likely to be exploited than 36.3% of known CVEs.

Detection Date

Apr 11, 2022

Remediation Due

May 02, 2022

CISA Catalog Active

Threat Analysis

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.

Remediation Directive

Apply updates per vendor instructions.

External Intelligence