CVE-2026-14461 – Out-of-bound read in mtr

CVE ID :CVE-2026-14461

Published : July 10, 2026, 11:16 a.m. | 32 minutes ago

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.

Severity: 5.1 | MEDIUM

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