All vulnerabilities
CVE-2010-3765

Mozilla Multiple Products Remote Code Execution Vulnerability

Mozilla Multiple Products
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationExploited in the wildAdded to KEV 6 Oct 2025CISA KEV
Exploit odds (EPSS)83.2%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline27 Oct 2025Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 25 Oct 2010Exploit code publicMetasploit
  2. 27 Oct 2010, 22:00 UTCPublishedCVE List
  3. 6 Oct 2025Added to CISA KEVCISA KEV

Public exploit code and templates 5

  • Exploit moduleMozilla Firefox Interleaved document.write/appendChild Memory Corruption 25 Oct 2010Metasploit
  • Remote exploitMozilla Firefox - Interleaving 'document.write' / 'appendChild' (Metasploit) 22 Feb 2011Exploit-DB
  • Dos exploitMozilla Firefox - Interleaving 'document.write' / 'appendChild' Denial of Service 28 Oct 2010Exploit-DB
  • Dos exploitMozilla Firefox - Simplified Memory Corruption (PoC) 28 Oct 2010Exploit-DB
  • Remote exploitMozilla Firefox 3.6.8 < 3.6.11 - Interleaving 'document.write' / 'appendChild' Remote Overflow 29 Oct 2010Exploit-DB

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

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.

Text from CVE List

Affected versions 1

  • n/aaffected: n/aCVE List

References 8