SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2009-2665

The nsDocument::SetScriptGlobalObject function in content/base/src/nsDocument.cpp in Mozilla Firefox 3.5.x before 3.5.2, when certain add-ons are enabled, does not properly handle a Link HTTP header, which allows remote attackers to execute arbitrary…

HIGH 10.0EPSS 2.53%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The nsDocument::SetScriptGlobalObject function in content/base/src/nsDocument.cpp in Mozilla Firefox 3.5.x before 3.5.2, when certain add-ons are enabled, does not properly handle a Link HTTP header, which allows remote attackers to execute arbitrary JavaScript with chrome privileges via a crafted web page, related to an incorrect security wrapper.

CVSS 2.0
10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS
2.53% probability · 85th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-94
Affected
mozilla/firefox
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 2.53%26 October 202626 October 2026

EPSS 2.5% 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.

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