CVE-2010-3765
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What it is
ReportedMozilla 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. Source description excerpt; complete tracked detail loads below.
NVD published: Oct 28, 2010 · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026
What is affected
ReportedMozilla — Multiple Products. Product-level identification only; no affected-version conclusion is available from this field.
NVD published: Oct 28, 2010 · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026
Urgency and basis
ReportedAct · 466.0
Tracker decision tier from the evidence detailed below · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026
Exploitation evidence
Reportedkev-listed · CISA KEV · VulnCheck KEV · ENISA exploited-vulnerability catalog
Active since: Oct 6, 2025 · CISA KEV added: Oct 6, 2025 · VulnCheck KEV added: Oct 27, 2010 · ENISA added: Oct 6, 2025 · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026
What to do
ReportedApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Source remediation ↗Tracked source remediation field · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026
Evidence detail
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