MEDIUM

CVE-2022-42917

2026-09-14 CVSS v3.1

CVSS

6.7

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.

Weakness (CWE)

CWE-367

EPSS Score

0.13%

Probability of exploitation in next 30 days

3.1th percentile

References

https://bugzilla.suse.com/show_bug.cgi?id=1204124 https://frrouting.org/security/cve-2022-42917/ https://github.com/FRRouting/frr/commit/972cdc560e339d70c0ee5fb70ec636ab78f00bca https://github.com/FRRouting/frr/compare/frr-8.4...frr-8.5

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Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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