CVE-2020-18778

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

In Libav 12.3, there is a heap-based buffer over-read in vc1_decode_p_mb_intfi in vc1_block.c that allows an attacker to cause denial-of-service via a crafted file.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-125

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://bugzilla.libav.org/show_bug.cgi?id=1155Broken Link, Exploit, Issue Tracking, Third Party Advisory
https://cwe.mitre.org/data/definitions/126.htmlTechnical Description
https://bugzilla.libav.org/show_bug.cgi?id=1155Broken Link, Exploit, Issue Tracking, Third Party Advisory
https://cwe.mitre.org/data/definitions/126.htmlTechnical Description

Timeline

Published: Aug 23, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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