CVE-2026-14461

Out-of-bound read in mtr

CVE-2026-14461 is fixed in mtr on 1 platform by DEBIAN-CVE-2026-14461 (version 0.96-2), released August 6, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

n/a

Moderate

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0045

38th percentile

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.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
mtr · Debian 14	0.96-2	DEBIAN-CVE-2026-14461	Aug 6, 2026

Details

Published
July 10, 2026
Weakness
Out-of-bounds Read
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-14461

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