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TI-2026-76161 Aliases CVE-2026-112009GHSA-hhc9-vxgx-6xvc

Heap out-of-bounds read in smpeg MPEG stream parsing

Priority MEDIUM 63CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

smpeg through 2.0.0 contains a heap out-of-bounds read in MPEGsystem::FillBuffer (CWE-125). A crafted system header stream table makes the code read past a 16384-byte buffer. A local attacker must get a user to open a crafted MPEG file, which crashes applications that open it. The references link a public exploit.

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

Description from the CNA

smpeg through 2.0.0 contains a heap out-of-bounds read vulnerability in MPEGsystem::FillBuffer() that allows attackers to read past the 16384-byte buffer by supplying a crafted system header stream table. Attackers can provide an MPEG file whose stream table bytes all set the high bit, which crashes applications opening it through SMPEG_new, SMPEG_new_rwops, or SMPEG_new_data.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00128 2nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
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
icculussmpegup to 2.0.0—No fix listedCNA
  • smpeg Vendoricculus Affected up to 2.0.0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for smpeg.

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

Timeline

  1. 2026-10-18 Threatist record created from CVE-2026-112009
  2. 2026-10-18 Alias added: GHSA-hhc9-vxgx-6xvc

References

Exploit 1

Other 2

  • TI-2009-03473 Stack-based buffer overflow in the M_AddToServerList function in client/menu.c in Red… CVSS 2.0HIGH 10.0
  • TI-2026-76162 Integer underflow in smpeg MPEG parser can crash applications CVSS 4.0MEDIUM 6.8
  • TI-2024-39136 Out-of-bounds read in PhysicsFS UTF-8 codepoint handling CVSS 4.0MEDIUM 4.8

Sources

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