VULNERABILITY INTELLIGENCE

CVE-2020-18778

CVSS score6.5 MEDIUM

EPSS probability0.89%

CISA KEVNot currently listed

Published2021-08-23

Last modified2026-06-17

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

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.

Weakness classification

nvd@nist.gov: CWE-125

Primary references

cve@mitre.org — Broken Link, Exploit, Issue Tracking, Third Party Advisory
cve@mitre.org — Technical Description
af854a3a-2127-422b-91ae-364da2661108 — Broken Link, Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Technical Description