What’s Vulnerable › Vulnerabilities

CVE-2009-3373

• Severity: critical (CVSS 10.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 15.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2009-10-29 · updated 2026-06-16
• Weakness: CWE-119

Description

Heap-based buffer overflow in the GIF image parser in Mozilla Firefox before 3.0.15 and 3.5.x before 3.5.4, and SeaMonkey before 2.0, allows remote attackers to execute arbitrary code via unspecified vectors.

Affected products

• Mozilla Firefox: 3.0, 3.0-alpha, 3.0-beta2, 3.0-beta5, 3.0.1, 3.0.2 (+15)
• Mozilla Seamonkey: through 1.5.0.10; 1.0, 1.0-alpha, 1.0-beta, 1.0.1, 1.0.2, 1.0.3 (+28)

References

• http://sunsolve.sun.com/search/document.do?assetkey=1-26-272909-1
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:294
• http://www.mozilla.org/security/announce/2009/mfsa2009-56.html
• http://www.vupen.com/english/advisories/2009/3334
• https://bugzilla.mozilla.org/show_bug.cgi?id=511689
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10684
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6548
• http://sunsolve.sun.com/search/document.do?assetkey=1-26-272909-1
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:294
• http://www.mozilla.org/security/announce/2009/mfsa2009-56.html
• http://www.vupen.com/english/advisories/2009/3334
• https://bugzilla.mozilla.org/show_bug.cgi?id=511689

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