CVE-2009-0771

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.6% 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

The layout engine in Mozilla Firefox before 3.0.7, Thunderbird before 2.0.0.21, and SeaMonkey 1.1.15 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via certain vectors that trigger memory corruption and assertion failures.

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/34140
http://secunia.com/advisories/34145
http://secunia.com/advisories/34272
http://secunia.com/advisories/34383
http://secunia.com/advisories/34462
http://secunia.com/advisories/34464
http://secunia.com/advisories/34527
http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.405420
http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.433952
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

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