ACTIVELY EXPLOITED3 sources verified·1 min read
By Lyrie Threat Intelligence·4/11/2022
CVE-2021-22600 added to CISA KEV: Linux Kernel
Status: ✅ Confirmed exploited in the wild
Date added: 2022-04-11
Required action: Apply updates per vendor instructions.
Due date: 2022-05-02
Why this matters
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.
Sources
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