What is CVE-2024-31950?

CVE-2024-31950 is a medium-severity vulnerability in Frrouting, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2024-04-07.

How severe is CVE-2024-31950?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Buffer overflow in Frrouting

CVE-2024-31950

In FRRouting (FRR) through 9.1, there can be a buffer overflow and daemon crash in ospf_te_parse_ri for OSPF LSA packets during an attempt to read Segment Routing subTLVs (their size is not validated).

Vulnerability class: Buffer Overflow

Published 2024-04-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (41.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Frrouting

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

github.com/FRRouting/frr/pull/15674/ (Issue Tracking)
github.com/FRRouting/frr/pull/15674/commits/6b84541df71772f697a7f9e6b2aaf72536a… (Patch)

Frequently asked questions

What is CVE-2024-31950?: CVE-2024-31950 is a medium-severity vulnerability in Frrouting, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2024-04-07.
How severe is CVE-2024-31950?: Medium severity. CVSS v3 base score is 6.5 out of 10.