What is CVE-2022-26129?

CVE-2022-26129 is a high-severity vulnerability in Frrouting, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2022-03-03.

How severe is CVE-2022-26129?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Frrouting

CVE-2022-26129

Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the subtlv length in the functions, parse_hello_subtlv, parse_ihu_subtlv, and parse_update_subtlv in babeld/message.c.

Vulnerability class: Buffer Overflow

Published 2022-03-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (61.8th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 61.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Frrouting
Frrouting — versions through 8.1.0

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

github.com/FRRouting/frr/issues/10503 (Exploit, Third Party Advisory, Issue Tracking)
lists.debian.org/debian-lts-announce/2024/04/msg00019.html
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2022-26129?: CVE-2022-26129 is a high-severity vulnerability in Frrouting, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2022-03-03.
How severe is CVE-2022-26129?: High severity. CVSS v3 base score is 7.8 out of 10.