CVE-2010-3765

unknown KEV

Published 2025-10-06 · Modified 2025-10-06

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

2.5

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.

CISA KEV

Vendor: Mozilla
Product: Multiple Products
Due date: 2025-10-27

Predictions

Exploit likelihood

99%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-16509 remote windows verified

Metasploit · 2011-02-22

Mozilla Firefox - Interleaving 'document.write' / 'appendChild' (Metasploit)

Source code queued for fetch — refresh in a moment.

EDB-15352 remote windows verified

anonymous · 2010-10-29

Mozilla Firefox 3.6.8 < 3.6.11 - Interleaving 'document.write' / 'appendChild' Remote Overflow

Source code queued for fetch — refresh in a moment.

EDB-15341 dos multiple verified

Daniel Veditz · 2010-10-28

Mozilla Firefox - Interleaving 'document.write' / 'appendChild' Denial of Service

Source code queued for fetch — refresh in a moment.

EDB-15342 dos multiple verified

extraexploit · 2010-10-28

Mozilla Firefox - Simplified Memory Corruption (PoC)

Source code queued for fetch — refresh in a moment.

Metasploit modules

exploit_windows/browser/mozilla_interleaved_write rank 300

Mozilla Firefox Interleaved document.write/appendChild Memory Corruption

Source fetch failed: fetch_error — view the original via the link above.

References

https://www.mozilla.org/en-US/security/advisories/mfsa2010-73 ; https://nvd.nist.gov/vuln/detail/CVE-2010-3765

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.