CVE-2026-5172

Published: Mag 11, 2026 Last Modified: Mag 11, 2026
ExploitDB:
Other exploit source:
Google Dorks:

Description

AI Translation Available

A buffer overflow in dnsmasq’s extract_addresses() function allows an attacker to trigger a heap out-of-bounds read and crash by exploiting a malformed DNS response, enabling extract_name() to advance the pointer past the record’s end.

https://github.com/NixOS/nixpkgs/pull/519082
https://github.com/NixOS/nixpkgs/pull/519082
https://github.com/NixOS/nixpkgs/pull/519093
https://github.com/NixOS/nixpkgs/pull/519093
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2…
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html
https://thekelleys.org.uk/dnsmasq/CVE/
https://thekelleys.org.uk/dnsmasq/CVE/
https://www.kb.cert.org/vuls/id/471747
https://www.kb.cert.org/vuls/id/471747