CVE-2009-3987

The GeckoActiveXObject function in Mozilla Firefox before 3.0.16 and 3.5.x before 3.5.6, and SeaMonkey before 2.0.1, generates different exception messages depending on whether the referenced COM object is listed in the registry, which allows remote attackers to obtain potentially sensitive information about installed software by making multiple calls that specify the ProgID values of different COM objects.

• CWE-200

• http://secunia.com/advisories/37699Vendor Advisory
• http://secunia.com/advisories/37785Vendor Advisory
• http://securitytracker.com/id?1023346Patch
• http://securitytracker.com/id?1023347Patch
• http://www.mozilla.org/security/announce/2009/mfsa2009-71.htmlVendor Advisory
• http://www.securityfocus.com/bid/37349
• http://www.securityfocus.com/bid/37360
• http://www.vupen.com/english/advisories/2009/3547Patch, Vendor Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=503451
• https://bugzilla.redhat.com/show_bug.cgi?id=546729
• https://exchange.xforce.ibmcloud.com/vulnerabilities/54798
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7958
• http://secunia.com/advisories/37699Vendor Advisory
• http://secunia.com/advisories/37785Vendor Advisory
• http://securitytracker.com/id?1023346Patch
• http://securitytracker.com/id?1023347Patch
• http://www.mozilla.org/security/announce/2009/mfsa2009-71.htmlVendor Advisory
• http://www.securityfocus.com/bid/37349
• http://www.securityfocus.com/bid/37360
• http://www.vupen.com/english/advisories/2009/3547Patch, Vendor Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=503451
• https://bugzilla.redhat.com/show_bug.cgi?id=546729
• https://exchange.xforce.ibmcloud.com/vulnerabilities/54798
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7958

Published

Dec 17, 2009

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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• CVE-2009-3984Mozilla Firefox before 3.0.16 and 3.5.x before 3.5.6, and Se…
• CVE-2009-3985Mozilla Firefox before 3.0.16 and 3.5.x before 3.5.6, and Se…
• CVE-2009-3986Mozilla Firefox before 3.0.16 and 3.5.x before 3.5.6, and Se…
• CVE-2009-3988Mozilla Firefox 3.0.x before 3.0.18 and 3.5.x before 3.5.8, …
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