In FRRouting (FRR) through 9.1, an infinite loop can occur when receiving a MP/GR capability as a dynamic capability because malformed data results in a pointer not advancing.
CVE-2024-31949
MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence
Score 6.5 from GitHub Security Advisory published 2024-04-07. NVD baseline CVSS 6.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.5Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.5
- EG Score
- 6.5(medium)
- EG Risk
- 30(Track)EG Risk 30/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity65% × 45%Exploitation1% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 49%
- KEV
- Not listed
Published
April 7, 2024
Last Modified
November 4, 2025
References (7)
- cve@mitrehttps://github.com/FRRouting/frr/pull/15640
- cve@mitrehttps://github.com/FRRouting/frr/pull/15640/commits/30a332dad86fafd2b0b6c61d23de59ed969a219b
- cve@mitrehttps://lists.debian.org/debian-lts-announce/2024/04/msg00019.html
- af854a3a-2127-422b-91ae-364da2661108https://github.com/FRRouting/frr/pull/15640
- af854a3a-2127-422b-91ae-364da2661108https://github.com/FRRouting/frr/pull/15640/commits/30a332dad86fafd2b0b6c61d23de59ed969a219b
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/04/msg00019.html
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/09/msg00007.html
Frequently asked(5)
What is CVE-2024-31949?
CVE-2024-31949 is a medium vulnerability published on April 7, 2024. In FRRouting (FRR) through 9.1, an infinite loop can occur when receiving a MP/GR capability as a dynamic capability because malformed data results in a pointer not advancing.
When was CVE-2024-31949 disclosed?
CVE-2024-31949 was first published in the National Vulnerability Database on April 7, 2024, with the most recent update on November 4, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-31949 actively exploited?
CVE-2024-31949 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 50.6% of all scored CVEs.
What is the CVSS score of CVE-2024-31949?
CVE-2024-31949 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2024-31949?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-31949, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2024-31949
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