CVE-2024-31948

MEDIUM

Published Apr 7, 2024 Modified Nov 4, 2025 CWE-1287

Description

In FRRouting (FRR) through 9.1, an attacker using a malformed Prefix SID attribute in a BGP UPDATE packet can cause the bgpd daemon to crash.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-1287 CWE-1287

Affected Products

Vendor	Product	Versions
frrouting	frrouting	< 9.1

References

Advisories & Patches

https://github.com/FRRouting/frr/pull/15628/commits/ba6a8f1a31e1a88df2de69ea46068e8bd9b97138 https://github.com/FRRouting/frr/pull/15628/commits/ba6a8f1a31e1a88df2de69ea46068e8bd9b97138

Other References

https://github.com/FRRouting/frr/pull/15628 https://lists.debian.org/debian-lts-announce/2024/04/msg00019.html https://github.com/FRRouting/frr/pull/15628 https://lists.debian.org/debian-lts-announce/2024/04/msg00019.html https://lists.debian.org/debian-lts-announce/2024/09/msg00007.html

Frequently Asked Questions

What is CVE-2024-31948? +

In FRRouting (FRR) through 9.1, an attacker using a malformed Prefix SID attribute in a BGP UPDATE packet can cause the bgpd daemon to crash. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2024-31948? +

CVE-2024-31948 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-31948? +

CVE-2024-31948 affects products from frrouting, specifically: frrouting. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-31948? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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