CVE-2008-4070

CVE-2008-4070 is a critical-severity vulnerability in Mozilla Seamonkey with a CVSS 2.0 base score of 10.0. 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-119.

Key facts

• Severity: Critical (CVSS 2.0 base score 10.0)
• EPSS exploit prediction: 7% (94th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Mozilla Seamonkey
• Published: 2008-09-27
• Last modified: 2026-06-16

Description

Heap-based buffer overflow in Mozilla Thunderbird before 2.0.0.17 and SeaMonkey before 1.1.12 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a long header in a news article, related to "canceling [a] newsgroup message" and "cancelled newsgroup messages."

Frequently asked questions

What is CVE-2008-4070?

Heap-based buffer overflow in Mozilla Thunderbird before 2.0.0.17 and SeaMonkey before 1.1.12 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a long header in a news article, related to "canceling [a] newsgroup message" and "cancelled newsgroup messages."

How severe is CVE-2008-4070?

CVE-2008-4070 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2008-4070 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-4070?

CVE-2008-4070 primarily affects Mozilla Seamonkey. In total, 72 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-4070?

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

When was CVE-2008-4070 published?

CVE-2008-4070 was published on 2008-09-27 and last updated on 2026-06-16.

References

• http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00005.html
• http://secunia.com/advisories/32010
• http://secunia.com/advisories/32025
• http://secunia.com/advisories/32044
• http://secunia.com/advisories/32082
• http://secunia.com/advisories/32092
• http://secunia.com/advisories/32196
• http://secunia.com/advisories/33433
• http://secunia.com/advisories/33434
• http://secunia.com/advisories/34501
• http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.379422
• http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.412123
• http://sunsolve.sun.com/search/document.do?assetkey=1-26-256408-1
• http://www.debian.org/security/2009/dsa-1696
• http://www.debian.org/security/2009/dsa-1697
• http://www.mandriva.com/security/advisories?name=MDVSA-2008:206
• http://www.mozilla.org/security/announce/2008/mfsa2008-46.html
• http://www.redhat.com/support/errata/RHSA-2008-0908.html
• http://www.securityfocus.com/bid/31411
• http://www.securitytracker.com/id?1020948
• http://www.ubuntu.com/usn/usn-647-1
• http://www.vupen.com/english/advisories/2009/0977
• https://bugzilla.mozilla.org/show_bug.cgi?id=425152
• https://exchange.xforce.ibmcloud.com/vulnerabilities/45426
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10933

Affected products (72)

• cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0:*:alpha:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0:*:dev:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0:beta:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.9:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.0.99:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:seamonkey:1.1.10:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:0.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:0.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:0.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:0.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:0.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:0.7:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:0.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:0.7.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:0.7.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:0.8:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:0.9:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:1.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:1.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:1.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:1.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:1.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:1.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:1.0.5:beta:*:*:*:*:*:*
• cpe:2.3:a:mozilla:thunderbird:1.0.6:*:*:*:*:*:*:*

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