CVE-2022-42917
MEDIUM
NVD
CVSS Score
6.7
Severity
MEDIUM
Published
Sep 14, 2026
Vendor
unknown
Description
In FRRouting FRR before 8.5, the service user (usually frr) can escalate its privileges to root by monitoring the configuration directory (/etc/frr) and replacing config files upon creation with, for example, symlinks to change the ownership of arbitrary files. This is a TOCTOU Race Condition caused by a combination of touch and chown.