Is CVE-2008-5500 in the CISA KEV catalog?

No. CVE-2008-5500 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2008-5500?

CVE-2008-5500 has a CVSS v2 base score of 10.0 (HIGH).

What is the EPSS score for CVE-2008-5500?

CVE-2008-5500 has an EPSS score of 3.20% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2008-5500?

Upgrade DeveloperEdition to 3.0.5 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2008-5500

HIGHEPSS 87th pctl

10.0

CVSS v2

NVD

Description

The layout engine in Mozilla Firefox 3.x before 3.0.5 and 2.x before 2.0.0.19, Thunderbird 2.x before 2.0.0.19, and SeaMonkey 1.x before 1.1.14 allows remote attackers to cause a denial of service (crash) and possibly trigger memory corruption via vectors related to (1) a reachable assertion or (2) an integer overflow.

CWE-399Resource Management Errors

How to fix

Remediation Available

DeveloperEditionWindows application

Affected:3.0 3.0.5Fixed in:3.0.5Mozilla

Affected:2.0 2.0.0.19Fixed in:2.0.0.19Mozilla

Mozilla Firefox (en-US)Windows application

Affected:3.0 3.0.5Fixed in:3.0.5Mozilla

Affected:2.0 2.0.0.19Fixed in:2.0.0.19Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:2.0 2.0.0.19Fixed in:2.0.0.19Mozilla

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

3.20%probability of exploitation in 30 days

87thpercentile

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

References

Related Vulnerabilities

Other CWE-399 (Resource Management Errors) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2009-3103	High	10.0	90%	-	-
CVE-2009-0075	High	9.3	85%	-	-
CVE-2005-1790	Low	2.6	83%	-	-
CVE-2010-0806	High	8.8	82%	KEV	-
CVE-2009-2526	High	7.8	82%	-	-
CVE-2015-1868	High	7.8	82%	-	Fix

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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 2026-04-23.