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CVE-2019-9718

18
FAUCET Score

CVE-2019-9718 describes a denial-of-service vulnerability in FFmpeg versions 3.2 and 4.1, affecting various distributions including Canonical and Debian Linux. An attacker can exploit this by crafting a malicious Matroska video file containing specially formatted subtitles, leading to high CPU utilization and system unresponsiveness. With a CVSS score of 6.5 (Medium), this vulnerability requires user interaction (UI:R) to trigger, as the victim must play the crafted video. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.2CPE matchmatch criteria
cpe:2.3:a:ffmpeg:ffmpeg:3.2:*:*:*:*:*:*:*
4.1CPE matchmatch criteria
cpe:2.3:a:ffmpeg:ffmpeg:4.1:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
18.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.57%
Probability of exploitation in next 30 days
EPSS Percentile
72.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0157 is in the 85th percentile among its peer group of 26,234 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, 0.1 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

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2019-9718Low

ffmpeg: denial of service in subtitle decoder allows attackers to hog CPU via crafted video file

Mar 12, 2019

References

git.ffmpeg.org / gitweb/ffmpeg.git/commit/1f00c97bc3475c477f3c468cf2d924d5761d0982
PatchThird Party Advisory
github.com / FFmpeg/FFmpeg/commit/23ccf3cabb4baf6e8af4b1af3fcc59c904736f21
PatchThird Party Advisory
seclists.org / bugtraq/2019/May/60
Mailing ListThird Party Advisory
usn.ubuntu.com / 3967-1
Third Party Advisory
debian.org / security/2019/dsa-4449
Third Party Advisory
securityfocus.com / bid/107382
Broken Link