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.

Published: 2024-04-07 Last update: 2025-11-04 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-31948 is rated Low Risk (33.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.08%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-31948

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 0.50% 0.08% -0.43%
2 2025-11-18 0.10% 0.50% +0.40%
3 2025-05-16 — 0.10% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-31948

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-31948

OS Trackers for CVE-2024-31948

vendor priority summary link
debian not yet assigned CVE-2024-31948 not yet assigned priority: Debian including 1 source packages (frr), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. https://security-tracker.debian.org/tracker/CVE-2024-31948
redhat medium — https://access.redhat.com/security/cve/CVE-2024-31948
suse high CVE-2024-31948 severity important: SUSE including 68 source package names (frr-10.2.1-150700.1.7, frr-10.2.1-160000.2.2, …), 364 product×package rows across 37 product lines (SUSE Enterprise Storage 7.1, SUSE Linux Enterprise High Performance Computing 12 SP5, … (37 product lines)): Fixed 205, Known Not Affected 159. https://www.suse.com/security/cve/CVE-2024-31948/
ubuntu medium CVE-2024-31948 medium priority: Ubuntu including 2 source packages (frr, quagga), 16 status rows across 9 suites (bionic, focal, jammy, mantic, noble, oracular, plucky, upstream, xenial): released 6, DNE 5, not-affected 3, needs-triage 2. https://ubuntu.com/security/CVE-2024-31948

Affected software / configurations for CVE-2024-31948

Vendor Product Version Raw CPE
frrouting frrouting <= 9.1 cpe:2.3:a:frrouting:frrouting:*:*:*:*:*:*:*:*

References for CVE-2024-31948

cvelogic Threat Intelligence