CVE-2026-112274
libtins through 4.6 Out-of-Bounds Read via DNS::soa_record::init
CVSS Score
3.7
EPSS Score
0.0%
EPSS Percentile
0th
libtins through 4.6 contains an out-of-bounds read vulnerability in DNS::soa_record::init that allows remote attackers to read past buffer bounds by supplying SOA data lacking NUL terminators. Attackers can feed raw SOA RDATA without a zero byte to applications using the buffer constructor, causing strlen to overrun the heap buffer and possibly crash.
| CWE | CWE-125 |
| Vendor | libtins |
| Product | libtins |
| Published | Oct 19, 2026 |
| Last Updated | Oct 19, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
libtins / libtins
0 ≤ 4.6
References
hackmd.io: https://hackmd.io/@haindpwn/libtins-dns-name-parsing-oob-read github.com: https://github.com/mfontanini/libtins/blob/v4.6/src/dns.cpp#L698-L710 github.com: https://github.com/mfontanini/libtins vulncheck.com: https://www.vulncheck.com/advisories/libtins-through-4.6-out-of-bounds-read-via-dns-soa-record-init
Credits
HaiND from the Post and Telecommunication Institute of Technology