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CVE-2014-7933

20
FAUCET Score

CVE-2014-7933 is a use-after-free vulnerability in the matroska_read_seek function of FFmpeg, specifically affecting versions prior to 2.5.1, and consequently Google Chrome before 40.0.2214.91. This flaw allows remote attackers to trigger a denial of service or potentially other unspecified impacts through a specially crafted Matroska file. With a CVSS score of 7.5, it is considered highly severe, requiring no authentication and having low attack complexity, potentially leading to partial confidentiality, integrity, and availability compromise. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 40.0.2214.85CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
<= 2.5.0CPE matchmatch criteria
cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.80%
Probability of exploitation in next 30 days
EPSS Percentile
85.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0280 is in the 73rd percentile among its peer group of 51,506 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, 0.1 Mastodon, and 0.4 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)

redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 6Fixed in: chromium-browser-0:40.0.2214.91-1.el6_6
View patch

Vendor Advisories (1)

redhatCVE-2014-7933Important

chromium-browser: use-after-free in FFmpeg

Jan 21, 2015

References

git.videolan.org
googlechromereleases.blogspot.com / 2015/01/stable-update.html
lists.opensuse.org / opensuse-security-announce/2015-03/msg00005.html
rhn.redhat.com / errata/RHSA-2015-0093.html
code.google.com / p/chromium/issues/detail
secunia.com / advisories/62383
secunia.com / advisories/62575
secunia.com / advisories/62665
security.gentoo.org / glsa/glsa-201502-13.xml
securityfocus.com / bid/72288
securitytracker.com / id/1031623
ubuntu.com / usn/USN-2476-1