CVE-2006-6585: n/a vulnerability

CVE-2006-6585: The Extensions manager in Mozilla Firefox 2.0 does not properly populate the list of local extensions, whic...

The Extensions manager in Mozilla Firefox 2.0 does not properly populate the list of local extensions, which allows attackers to construct an extension that hides itself by finding its name in the list and then calling RemoveElement, as demonstrated by the FFsniFF extension. NOTE: it was later reported that 3.0 is also affected.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 20:33 UTC (UTC+00:00)

Security readout for executives and security teams

This CVE describes a Firefox extension-management weakness where a malicious local extension could hide itself from the browser’s Extensions manager. The business risk is persistence and reduced visibility on endpoints using legacy Firefox 2.0, with later reporting that Firefox 3.0 was also affected. Exposure appears limited to environments running legacy Mozilla Firefox 2.0 or reportedly 3.0 with untrusted or malicious extensions installed. The provided affected-product metadata is incomplete and lists n/a values. Treat this as a legacy endpoint hygiene issue unless old Firefox deployments exist. Prioritize discovery and retirement over emergency response; the bundle does not support active-exploitation claims. Mitigation focus: Identify and retire Firefox 2.0 and 3.0 installations where present.; Do not rely only on the Extensions manager for extension inventory.; Review browser profile extension directories through endpoint management tooling..

Prepared: Jun 29, 2026, 08:45 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 15, 2006, 19:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

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1Source links

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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