Is CVE-2014-1592 in the CISA KEV catalog?

No. CVE-2014-1592 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-1592?

CVE-2014-1592 has a CVSS v2 base score of 6.8 (MEDIUM).

What is the EPSS score for CVE-2014-1592?

CVE-2014-1592 has an EPSS score of 3.38% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2014-1592?

Upgrade firefox on ubuntu 14.04 to 34.0+build2-0ubuntu0.14.04.1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2014-1592

MEDIUMEPSS 87th pctl

6.8

CVSS v2

NVD

Description

Use-after-free vulnerability in the nsHtml5TreeOperation function in xul.dll in Mozilla Firefox before 34.0, Firefox ESR 31.x before 31.3, Thunderbird before 31.3, and SeaMonkey before 2.31 allows remote attackers to execute arbitrary code by adding a second root element to an HTML5 document during parsing.

How to fix

Remediation Available

firefoxUbuntu

Fixed in:34.0+build2-0ubuntu0.14.04.1USN-2424-1

thunderbirdUbuntu

Fixed in:1:31.3.0+build1-0ubuntu0.14.04.1USN-2428-1

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

3.38%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Vendor Advisory1

mozilla.org

Other references8

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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.