CVE-2026-14461 | mtr is vulnerable to Out-of-bound read vulnerability in ipin… | CVSS 5.1 MEDIUM

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.

Metadata

CVE ID: CVE-2026-14461
State: PUBLISHED
Assigner: CERT-PL
Reserved: 2026-07-02 08:57 UTC
Published: 2026-07-10 10:38 UTC
Last updated: 2026-07-10 10:38 UTC
Primary CWE: CWE-125
CWE-125 Out-of-bounds read
Vendor / Product: BitWizard / mtr
Sources: cve.org · NVD

Severity & Metrics

5.1 MEDIUM CVSS 4.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Affected products (1)

Vendor	Product	Platform	Versions
BitWizard	mtr	—	0 ≤ 0.96

Weakness (CWE)

CWE	Source	Description
CWE-125	cna	CWE-125 Out-of-bounds read

CVSS scores (1)

Score	Severity	Version	Source	Vector
5.1	MEDIUM	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

References (2)