Security Advisory

CVE-2026-14461

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-10 10:38:28

Last updated 2026-07-10 13:14:54

Assigner CERT-PL

CVSS score 5.1

State PUBLISHED

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.

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