CVE-2022-23086: Freebsd

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Handlers for *_CFG_PAGE read / write ioctls in the mpr, mps, and mpt drivers allocated a buffer of a caller-specified size, but copied to it a fixed size header. Other heap content would be overwritten if the specified size was too small. Users with access to the mpr, mps or mpt device node may overwrite heap data, potentially resulting in privilege escalation. Note that the device node is only accessible to root and members of the operator group.

Affected products

• Freebsd Freebsd: from 12.0, before 12.3 (fixed in 12.3); version 12.3 only; version 13.0 only

Published 2024-02-15. Last modified 2026-06-17.