CVE-2026-112009
smpeg through 2.0.0 Heap Out-of-Bounds Read via MPEGsystem::FillBuffer
- State
- Published
- Severity
- 6.8 Medium
- Published
- Oct 18, 2026
- Updated
- Oct 18, 2026
- Reserved
- Oct 18, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
smpegicculus |
|
References
- https://hackmd.io/@haindpwn/smpeg-system-header-stream-table-oob-readtechnical-descriptionexploit
- https://github.com/icculus/smpeg/blob/d188dc111f4817288718705e4a84e248803ccfdc/MPEGsystem.cpp#L803-L823technical-description
- https://github.com/icculus/smpegproduct
- VulnCheck Advisory: smpeg through 2.0.0 Heap Out-of-Bounds Read via MPEGsystem::FillBufferthird-party-advisory
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