CVE-2018-13305

HighCVSS 8.1/10Last modified Jun 17, 2026

Description

In FFmpeg 4.0.1, due to a missing check for negative values of the mquant variable, the vc1_put_blocks_clamped function in libavcodec/vc1_block.c may trigger an out-of-array access while converting a crafted AVI file to MPEG4, leading to an information disclosure or a denial of service.

Metrics

CVSS 3.0 8.1/10CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jul 5, 2018
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2018-13305: High severity, CVSS 8.1 | Vulnix