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TI-2026-76474 Aliases CVE-2026-112274GHSA-4c37-573g-qpf9

Out-of-bounds read in libtins DNS::soa_record::init

Priority MEDIUM 61CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

libtins through 4.6 contains an out-of-bounds read in DNS::soa_record::init (CWE-125). A remote attacker can supply SOA data without NUL terminators to applications that use the buffer constructor. Because strlen reads past the heap buffer, the application may crash.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00522 44th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
libtinslibtinsup to 4.6—No fix listedCNA
  • libtins Vendorlibtins Affected up to 4.6 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for libtins.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-19 Threatist record created from CVE-2026-112274
  2. 2026-10-19 Alias added: GHSA-4c37-573g-qpf9
  3. 2026-10-20 CISA SSVC decision points changed
  4. 2026-10-20 Affected versions changed · Red Hat
  5. 2026-10-20 CVSS score added · Red Hat

References

Advisory 1

Other 2

  • TI-2026-76473 Heap out-of-bounds read in libtins DNS::compose_name CVSS 4.0MEDIUM 6.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences