CVE-2009-0775

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-03-05 · updated 2026-06-16
Weakness: CWE-399

Description

Double free vulnerability in Mozilla Firefox before 3.0.7, Thunderbird before 2.0.0.21, and SeaMonkey before 1.1.15 allows remote attackers to execute arbitrary code via "cloned XUL DOM elements which were linked as a parent and child," which are not properly handled during garbage collection.

Affected products

Mozilla Firefox: through 3.0.6; 1.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5 (+43)
Mozilla Seamonkey: through 1.1.14; 1.0, 1.0.1, 1.0.2, 1.0.3, 1.0.5, 1.0.6 (+19)
Mozilla Thunderbird: through 2.0.0.20; 2.0.0.0, 2.0.0.4, 2.0.0.5, 2.0.0.6, 2.0.0.9, 2.0.0.12 (+5)

References

http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00002.html
http://secunia.com/advisories/34137
http://secunia.com/advisories/34140
http://secunia.com/advisories/34145
http://secunia.com/advisories/34272
http://secunia.com/advisories/34324
http://secunia.com/advisories/34383
http://secunia.com/advisories/34417
http://support.avaya.com/elmodocs2/security/ASA-2009-069.htm
http://support.avaya.com/japple/css/japple?temp.documentID=366362&temp.productID=154235&temp.releaseID=361845&temp.bucketID=126655&PAGE=Document
http://www.debian.org/security/2009/dsa-1751
http://www.mandriva.com/security/advisories?name=MDVSA-2009:075

Get alerted when CVE-2009-0775 or the next vulnerability affects your stack