CVE-2026-112010
smpeg through 2.0.0 Integer Underflow via stream_header in MPEGsystem.cpp
- 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 an integer underflow vulnerability in stream_header() in MPEGsystem.cpp that allows attackers to wrap packet_size by declaring an undersized packet length. Attackers can supply a crafted MPEG file opened via SMPEG_new, SMPEG_new_rwops or SMPEG_new_data to trigger a reachable assertion or out-of-bounds copy, crashing the application.
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-191 Integer Underflow (Wrap or Wraparound)
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#L295-L350technical-description
- https://github.com/icculus/smpeg/blob/d188dc111f4817288718705e4a84e248803ccfdc/MPEGsystem.cpp#L777technical-description
- https://github.com/icculus/smpegproduct
- VulnCheck Advisory: smpeg through 2.0.0 Integer Underflow via stream_header in MPEGsystem.cppthird-party-advisory
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