CVE-2026-112009

MediumCVSS 5.5

Published: 18/10/2026(UTC)Updated: 19/10/2026(UTC)Translated: 18/10/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.13%

2th percentile - higher than 2% of all known CVEs

Summary

smpeg through 2.0.0 contains a heap out-of-bounds read vulnerability in MPEGsystem::FillBuffer(). A crafted system header stream table whose bytes all set the high bit can cause reads past the 16384-byte buffer, crashing applications that open it via SMPEG_new, SMPEG_new_rwops, or SMPEG_new_data.

Risk Assessment

Applications opening untrusted MPEG files via SMPEG_new, SMPEG_new_rwops, or SMPEG_new_data may crash, potentially enabling denial-of-service attacks.

Recommendation

Update smpeg to a version newer than 2.0.0 or avoid opening untrusted MPEG files until a fix is available.

Other vulnerabilities in smpeg

CVE-2026-112010Medium
smpeg through 2.0.0 contains an integer underflow vulnerability in stream_header() in MPEGsystem.cpp. By supplying a crafted MPEG file with an undersized packet length, packet_size can be wrapped, leading to a reachable assertion or out-of-bounds copy and application crash.

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS