EUVD-2026-42866

ID: EUVD-2026-42866

Severity: medium

CVSS v4: 5.1 (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)

CVSS v3: Not provided

CWE: None listed

Source: ENISA

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.

Timestamps

Normalized: 2026-07-10T12:09:18Z UTC
Last updated: 2026-07-10T12:09:18Z UTC

References

No references provided.

VulnAI

EUVD-2026-42866

Description

Timestamps

References