How severe is CVE-2008-2801?

CVE-2008-2801 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2008-2801 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-2801?

CVE-2008-2801 primarily affects Mozilla Firefox. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-2801?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2008-2801 published?

CVE-2008-2801 was published on 2008-07-07 and last updated on 2026-06-16.

CVE-2008-2801

CVE-2008-2801 is a high-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Mozilla Firefox
Published: 2008-07-07
Last modified: 2026-06-16

Description

Mozilla Firefox before 2.0.0.15 and SeaMonkey before 1.1.10 do not properly implement JAR signing, which allows remote attackers to execute arbitrary code via (1) injection of JavaScript into documents within a JAR archive or (2) a JAR archive that uses relative URLs to JavaScript files.

Frequently asked questions

What is CVE-2008-2801?: Mozilla Firefox before 2.0.0.15 and SeaMonkey before 1.1.10 do not properly implement JAR signing, which allows remote attackers to execute arbitrary code via (1) injection of JavaScript into documents within a JAR archive or (2) a JAR archive that uses relative URLs to JavaScript files.
How severe is CVE-2008-2801?: CVE-2008-2801 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2008-2801 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-2801?: CVE-2008-2801 primarily affects Mozilla Firefox. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-2801?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2008-2801 published?: CVE-2008-2801 was published on 2008-07-07 and last updated on 2026-06-16.

References

Affected products (24)

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:2.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:2.0.0.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:2.0.0.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:2.0.0.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:2.0.0.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:2.0.0.5:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:2.0.0.6:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:2.0.0.7:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:2.0.0.8:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:2.0.0.9:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:2.0.0.10:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:2.0.0.11:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:2.0.0.12:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:2.0.0.13:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.5:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.6:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.7:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.8:*:*:*:*:*:*:*

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