CVE-2026-112273
MEDIUM
NVD
CVSS Score
5.3
Severity
MEDIUM
Published
Oct 19, 2026
Vendor
unknown
Description
libtins through 4.6 contains a heap out-of-bounds read vulnerability in DNS::compose_name in src/dns.cpp that allows remote attackers to read past the packet buffer by sending a label ending exactly at the packet end. Attackers can deliver crafted DNS packets whose additional, answer, or authority records trigger a one-byte read when parsed, crashing applications on hardened allocators.