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CVE-2016-9820

16
FAUCET Score

CVE-2016-9820 describes a denial-of-service vulnerability in libav 11.8, specifically within the libavcodec/mpegvideo_motion.c component. This flaw allows remote attackers to crash the application by providing specially crafted input that triggers a left shift of a negative value. Rated as MEDIUM severity (CVSS 5.5), exploitation requires user interaction (UI:R) and local access (AV:L), leading to high availability impact (A:H). There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
11.8CPE matchmatch criteria
cpe:2.3:a:libav:libav:11.8:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.94%
Probability of exploitation in next 30 days
EPSS Percentile
57.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0094 is in the 67th percentile among its peer group of 5,760 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blogs.gentoo.org / ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer
ExploitThird Party Advisory
securityfocus.com / bid/94732