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CVE record · CVE-2024-42491

A malformed Contact or Record-Route URI in an incoming SIP request can cause Asterisk to crash when res_resolver_unbound is used

CVSS 5.7 MediumEPSS 0.0058 · 47th percentile

Published by the CVE Program (CNA: GitHub_M) at 5 Sept 2024, 17:17 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
asterisk asterisk
  • affected < 18.24.3
  • affected >= 19.0.0, < 20.9.3
  • affected >= 21.0.0, < 21.4.3
  • affected < 18.9-cert12
  • affected >= 19.0, < 20.7-cert2
Identifiers
CVE-2024-42491
CNA
GitHub_M
Weakness (CWE)
CWE-252 · CWE-476
Tags
Published
5 Sept 2024
Updated
3 Nov 2025

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.7 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0058, the 47th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 5 Sept 2024. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.