CVE-2026-112009

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/icculus/smpeg
https://github.com/icculus/smpeg/blob/d188dc111f4817288718705e4a84e248803ccfdc/MPEGsystem.cpp#L803-L823
https://hackmd.io/@haindpwn/smpeg-system-header-stream-table-oob-read
https://www.vulncheck.com/advisories/smpeg-through-2.0.0-heap-out-of-bounds-read-via-mpegsystem-fillbuffer

Configurations

No configuration.

History

18 Oct 2026, 12:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-18 12:17

Updated : 2026-10-19 21:14

NVD link : CVE-2026-112009

Mitre link : CVE-2026-112009

CVE.ORG link : CVE-2026-112009

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

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