SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2011-3664

Mozilla Firefox before 9.0, Thunderbird before 9.0, and SeaMonkey before 2.6 on Mac OS X do not properly handle certain DOM frame deletions by plugins, which allows remote attackers to cause a denial of service (incorrect pointer dereference and…

MEDIUM 6.8EPSS 1.31%

Does this matter?

Lower severity and a low EPSS score (1.31%). Track it; it rarely justifies an emergency change on its own.

Description

Mozilla Firefox before 9.0, Thunderbird before 9.0, and SeaMonkey before 2.6 on Mac OS X do not properly handle certain DOM frame deletions by plugins, which allows remote attackers to cause a denial of service (incorrect pointer dereference and application crash) or possibly have unspecified other impact via a crafted web site.

CVSS 2.0
6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
EPSS
1.31% probability · 70th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
mozilla/firefox · mozilla/seamonkey · mozilla/thunderbird
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 1.31%26 October 202626 October 2026

EPSS 1.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.