CRITICALCVSS 9.8Actively exploited · CISA KEV since 2025-10-06Vulnerability

CVE-2010-3765

Mozilla Firefox, SeaMonkey, and Thunderbird contain an unspecified vulnerability when JavaScript is enabled. This 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.

Properties

Vulnerability name
Mozilla Multiple Products Remote Code Execution Vulnerability
First seen
2025-10-22T00:05:51+00:00
Cvss score
9.8
Epss score
0.83156
Last seen
2026-10-19T12:00:27+00:00
Due date
2025-10-27
Euvd assigner
mitre
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2025-10-06T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2025-10-06
Score
9.8
Euvd base score version
3.1
Fetched at
2026-10-20T10:36:20+00:00
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
In Signal since
initial import (Sep 2026)
Euvd base score
9.8
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vendor project
Mozilla

Related Entities (59 · showing 23)

AFFECTS_PRODUCT (56 · showing 20)

→[Product]cpe:2.3:a:mozilla:seamonkey:2.0:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:seamonkey:2.0.6:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:seamonkey:2.0.5:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:seamonkey:2.0.8:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:seamonkey:2.0.9:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:seamonkey:2.0.7:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:firefox:3.6.10:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:firefox:3.6.11:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:firefox:3.6.3:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:seamonkey:2.0.2:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:firefox:3.5.1:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:firefox:3.5.7:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:firefox:3.5.8:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:firefox:3.5.5:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:firefox:3.5.9:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:firefox:3.5.3:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:firefox:3.5.4:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:firefox:3.5.2:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:firefox:3.5:*:*:*:*:*:*:*
→[Product]cpe:2.3:a:mozilla:firefox:3.5.6:*:*:*:*:*:*:*

DESCRIBES (1)

←[KEVEntry]Mozilla Multiple Products Remote Code Execution Vulnerability

HAS_WEAKNESS (1)

→[Weakness]Improper Restriction of Operations within the Bounds of a Memory Buffer

INVOLVES (1)

←[Signal]kev_added · 2025-10-06

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CVE-2010-3765 (CVSS 9.8) — Ninja Signal Threat Intelligence | Ninja Signal