What’s Vulnerable › Vulnerabilities

CVE-2009-1838

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2009-06-12 · updated 2026-06-16
• Weakness: CWE-94

Description

The garbage-collection implementation in Mozilla Firefox before 3.0.11, Thunderbird before 2.0.0.22, and SeaMonkey before 1.1.17 sets an element's owner document to null in unspecified circumstances, which allows remote attackers to execute arbitrary JavaScript with chrome privileges via a crafted event handler, related to an incorrect context for this event handler.

Affected products

• Mozilla Firefox: through 3.0.10; 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+95)
• Mozilla Seamonkey: through 1.1.16; 1.0, 1.0-alpha, 1.0-beta, 1.0.1, 1.0.3, 1.0.4 (+20)
• Mozilla Thunderbird: through 2.0.0.19; 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+62)

References

• http://osvdb.org/55157
• http://rhn.redhat.com/errata/RHSA-2009-1096.html
• http://secunia.com/advisories/35331
• http://secunia.com/advisories/35415
• http://secunia.com/advisories/35428
• http://secunia.com/advisories/35431
• http://secunia.com/advisories/35439
• http://secunia.com/advisories/35440
• http://secunia.com/advisories/35468
• http://secunia.com/advisories/35536
• http://secunia.com/advisories/35561
• http://secunia.com/advisories/35602

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