What is CVE-2023-38407?

CVE-2023-38407 is a high-severity vulnerability in Frrouting. CVSS score: 7.5/10. Published 2023-11-06.

How severe is CVE-2023-38407?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Frrouting

CVE-2023-38407

bgpd/bgp_label.c in FRRouting (FRR) before 8.5 attempts to read beyond the end of the stream during labeled unicast parsing.

Published 2023-11-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (59.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Frrouting

References

github.com/FRRouting/frr/pull/12951 (Patch)
github.com/FRRouting/frr/pull/12956 (Patch)
github.com/FRRouting/frr/compare/frr-8.5-rc...frr-8.5 (Patch)
lists.debian.org/debian-lts-announce/2024/04/msg00019.html (mailing-list)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2023-38407?: CVE-2023-38407 is a high-severity vulnerability in Frrouting. CVSS score: 7.5/10. Published 2023-11-06.
How severe is CVE-2023-38407?: High severity. CVSS v3 base score is 7.5 out of 10.