Is CVE-2008-5017 in the CISA KEV catalog?

No. CVE-2008-5017 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2008-5017?

CVE-2008-5017 has a CVSS v2 base score of 10.0 (HIGH).

What is the EPSS score for CVE-2008-5017?

CVE-2008-5017 has an EPSS score of 3.84% (89th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2008-5017?

Upgrade DeveloperEdition to 2.0.0.18 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2008-5017

HIGHEPSS 89th pctl

10.0

CVSS v2

NVD

Description

Integer overflow in xpcom/io/nsEscape.cpp in the browser engine in Mozilla Firefox 3.x before 3.0.4, Firefox 2.x before 2.0.0.18, Thunderbird 2.x before 2.0.0.18, and SeaMonkey 1.x before 1.1.13 allows remote attackers to cause a denial of service (crash) via unknown vectors.

CWE-189

How to fix

Remediation Available

DeveloperEditionWindows application

Affected:2.0 2.0.0.18Fixed in:2.0.0.18Mozilla

Affected:3.0 3.0.4Fixed in:3.0.4Mozilla

Mozilla Firefox (en-US)Windows application

Affected:3.0 3.0.4Fixed in:3.0.4Mozilla

Affected:2.0 2.0.0.18Fixed in:2.0.0.18Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:2.0 2.0.0.18Fixed in:2.0.0.18Mozilla

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

3.84%probability of exploitation in 30 days

89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Related Vulnerabilities

Other CWE-189 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-1538	High	10.0	99%	-	-
CVE-2006-3747	High	7.6	96%	-	Fix
CVE-2007-0071	High	9.3	93%	-	-
CVE-2015-3829	High	10.0	90%	-	-
CVE-2015-3864	High	10.0	87%	-	-
CVE-2015-1539	High	10.0	86%	-	-

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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.