CVE-2026-112010
smpeg through 2.0.0 Integer Underflow via stream_header in MPEGsystem.cpp
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-191 |
| Vendor | icculus |
| Product | smpeg |
| Published | Oct 18, 2026 |
| Last Updated | Oct 18, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
icculus / smpeg
0 ≤ 2.0.0
References
hackmd.io: https://hackmd.io/@haindpwn/smpeg-system-header-stream-table-oob-read github.com: https://github.com/icculus/smpeg/blob/d188dc111f4817288718705e4a84e248803ccfdc/MPEGsystem.cpp#L295-L350 github.com: https://github.com/icculus/smpeg/blob/d188dc111f4817288718705e4a84e248803ccfdc/MPEGsystem.cpp#L777 github.com: https://github.com/icculus/smpeg vulncheck.com: https://www.vulncheck.com/advisories/smpeg-through-2.0.0-integer-underflow-via-stream-header-in-mpegsystem-cpp
Credits
HaiND from the Post and Telecommunication Institute of Technology