Vulnerability Description
mtr is vulnerable to Out-of-bound read vulnerability in ipinfo_lookup() function. An attacker who can influence the TXT response used for AS lookups can trigger this bug by returning a DNS response that is larger than 512 bytes and uses a crafted compression pointer in the answer NAME field. ipinfo_lookup() function uses the length of the response as the end-of-message boundary for dn_expand() function. The result is a reliable crash. This issue exists in the mtr through version 0.96 and it was fixed in commit 48e1794414d338ce47abc0f27c25ade8788af9c3.
Related Weaknesses (CWE)
References
- https://cert.pl/en/posts/2026/07/CVE-2026-14461
- https://github.com/traviscross/mtr/commit/48e1794414d338ce47abc0f27c25ade8788af9
FAQ
What is CVE-2026-14461?
CVE-2026-14461 is a documented vulnerability. mtr is vulnerable to Out-of-bound read vulnerability in ipinfo_lookup() function. An attacker who can influence the TXT response used for AS lookups can trigger this bug by returning a DNS response th...
How severe is CVE-2026-14461?
CVSS scoring is not yet available for CVE-2026-14461. Check NVD for updates.
Is there a patch for CVE-2026-14461?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.