KEV · Actively exploited

CVE-2010-3765

CVE-2010-3765 is actively exploited (CISA KEV catalog) : critical severity (CVSS 9.8), 2 tracked apps concerned, none still exposed on their current version.

Severity (CVSS): 9.8
Exploitation: Confirmed
Tracked apps: 2
Still exposed: 0

Public exploit : ExploitDB Published on 2010-10-28

Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before 3.1.6 and 3.0.x before 3.0.10, and SeaMonkey 2.x before 2.0.10, when JavaScript is enabled, allows remote attackers to execute arbitrary code via vectors related to nsCSSFrameConstructor::ContentAppended, the appendChild method, incorrect index tracking, and the creation of multiple frames, which triggers memory corruption, as exploited in the wild in October 2010 by the Belmoo malware.

Attack vector : Network No privileges required No user interaction

Show raw CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS 83.16% predictive model; CISA confirms active exploitation percentile 99.7%

CISA Known Exploited Vulnerability

Added to KEV: 2025-10-06
Remediation deadline: 2025-10-27
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Ransomware: Unknown (not documented by CISA)

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Mozilla Firefox Windows winget:Mozilla.Firefox

Affected - Fixed in - Latest tracked 156.0.1 undetermined
Mozilla Thunderbird Windows winget:Mozilla.Thunderbird

Affected - Fixed in - Latest tracked 156.0.1 undetermined

Vulnerable CPE configurations (39)

Vendor	Product	Platform	Versions	CPE 2.3 URI
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.5:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.5.1:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.5.2:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.5.3:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.5.4:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.5.5:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.5.6:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.5.7:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.5.8:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.5.9:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.5.10:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.5.11:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.5.12:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.5.13:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.5.14:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.6:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.6.2:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.6.3:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.6.4:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.6.6:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.6.7:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.6.8:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.6.9:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.6.10:::::::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:firefox:3.6.11:::::::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:thunderbird:3.0.1:::::::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:thunderbird:3.0.2:::::::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:thunderbird:3.0.3:::::::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:thunderbird:3.0.4:::::::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:thunderbird:3.0.5:::::::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:thunderbird:3.0.6:::::::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:thunderbird:3.0.7:::::::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:thunderbird:3.0.8:::::::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:thunderbird:3.0.9:::::::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:thunderbird:3.1.1:::::::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:thunderbird:3.1.2:::::::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:thunderbird:3.1.3:::::::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:thunderbird:3.1.4:::::::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:mozilla:thunderbird:3.1.5:::::::*

View on NVD ↗ CISA KEV catalog ↗ Advisory · blog.mozilla.com Advisory · secunia.com Advisory · www.vupen.com

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