CVE-2016-9820

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2017-03-01 · updated 2026-06-17
Weakness: CWE-189

Description

libavcodec/mpegvideo_motion.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via vectors involving left shift of a negative value.

Affected products

libav: 11.8

References

http://www.securityfocus.com/bid/94732
https://blogs.gentoo.org/ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer/
http://www.securityfocus.com/bid/94732
https://blogs.gentoo.org/ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer/

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