Is CVE-2015-0813 in the CISA KEV catalog?

No. CVE-2015-0813 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-0813?

CVE-2015-0813 has a CVSS v2 base score of 5.1 (MEDIUM).

What is the EPSS score for CVE-2015-0813?

CVE-2015-0813 has an EPSS score of 5.30% (92th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-0813?

Upgrade firefox on ubuntu 14.04 to 37.0+build2-0ubuntu0.14.04.1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2015-0813

MEDIUMEPSS 92th pctl

5.1

CVSS v2

NVD

Description

Use-after-free vulnerability in the AppendElements function in Mozilla Firefox before 37.0, Firefox ESR 31.x before 31.6, and Thunderbird before 31.6 on Linux, when the Fluendo MP3 plugin for GStreamer is used, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via a crafted MP3 file.

How to fix

Remediation Available

firefoxUbuntu

Fixed in:37.0+build2-0ubuntu0.14.04.1USN-2550-1

thunderbirdUbuntu

Fixed in:1:31.6.0+build1-0ubuntu0.14.04.1USN-2552-1

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

5.30%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Vendor Advisory1

mozilla.org

Other references16

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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.