CVE-2026-112009CWE-125

CVE-2026-112009

Medium · published October 18, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
2.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
6.8 · 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
EPSS
0.00130 · 2.4th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-10-18T16:17Z
References (4)
https://github.com/icculus/smpeg · [email protected]https://github.com/icculus/smpeg/blob/d188dc111f4817288718705e4a84e248803ccfdc/MPEGsystem.cpp#L803-L823 · [email protected]https://hackmd.io/@haindpwn/smpeg-system-header-stream-table-oob-read · [email protected]https://www.vulncheck.com/advisories/smpeg-through-2.0.0-heap-out-of-bounds-read-via-mpegsystem-fillbuffer · [email protected]
EPSS history
Timeline
  • 20 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 18 OCT 11:38Z
    smpeg through 2.0.0 Heap Out-of-Bounds Read via MPEGsystem::FillBuffer
    cvelistv5
  • 18 OCT 11:38Z
    smpeg through 2.0.0 Heap Out-of-Bounds Read via MPEGsystem::FillBuffer
    cvelistv5