Is CVE-2014-7933 in the CISA KEV catalog?

No. CVE-2014-7933 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-7933?

CVE-2014-7933 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2014-7933?

CVE-2014-7933 has an EPSS score of 2.80% (85th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2014-7933?

Upgrade ffmpeg on debian 11 to 7:2.5.1-1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2014-7933

HIGHEPSS 85th pctl

7.5

CVSS v2

NVD

Description

Use-after-free vulnerability in the matroska_read_seek function in libavformat/matroskadec.c in FFmpeg before 2.5.1, as used in Google Chrome before 40.0.2214.91, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted Matroska file that triggers improper maintenance of tracks data.

How to fix

Remediation Available

ffmpegDebian

Fixed in:7:2.5.1-1CVE-2014-7933

liboxideqtcore0Ubuntu

Fixed in:1.4.2-0ubuntu0.14.04.1USN-2476-1

oxide-qtUbuntu

Fixed in:1.4.2-0ubuntu0.14.04.1USN-2476-1

oxideqt-codecsUbuntu

Fixed in:1.4.2-0ubuntu0.14.04.1USN-2476-1

oxideqt-codecs-extraUbuntu

Fixed in:1.4.2-0ubuntu0.14.04.1USN-2476-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

2.80%probability of exploitation in 30 days

85thpercentile

Elevated risk: more likely to be exploited than 85% of all known CVEs.

References

Other references12

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.