Is CVE-2013-0753 in the CISA KEV catalog?

No. CVE-2013-0753 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2013-0753?

CVE-2013-0753 has a CVSS v2 base score of 9.3 (HIGH).

What is the EPSS score for CVE-2013-0753?

CVE-2013-0753 has an EPSS score of 51.32% (99th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2013-0753

HIGHEPSS 99th pctl

9.3

CVSS v2

NVD

Description

Use-after-free vulnerability in the serializeToStream implementation in the XMLSerializer component in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 and 17.x before 17.0.2, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code via crafted web content.

CWE-416Use After Free

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

51.32%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

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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 2026-04-29.