CVE-2021-22600
Linux Kernel Privilege Escalation Vulnerability
CVSS
—
No CVSS
EPSS
6.6%
p94
KEV
YES
Apr 11, 2022
Exploit Today
78
0-100
Published: — · Last modified: —
6.1%EPSS · 30 days6.6%
2026-09-172026-10-15
Product
Linux / Kernel
Vulnerability
Linux Kernel Privilege Escalation Vulnerability
Added to KEV
Apr 11, 2022
Remediate by
May 2, 2022
Known ransomware use
No
Summary 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.
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2021-22600
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