CVE-2012-3993: n/a vulnerability

CVE-2012-3993: The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0...

The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 does not properly interact with failures of InstallTrigger methods, which allows remote attackers to execute arbitrary JavaScript code with chrome privileges via a crafted web site, related to an "XrayWrapper pollution" issue.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 20:21 UTC (UTC+00:00)

Security readout for executives and security teams

This is a legacy Mozilla browser and mail-client flaw where a malicious website could make vulnerable Mozilla software run JavaScript with internal browser privileges. That can turn normal web browsing into a high-impact compromise path on systems still running the listed old versions. Exposure is mainly legacy systems running Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, or SeaMonkey before 2.13. Modern environments are unlikely exposed unless old packaged versions remain installed. Prioritize remediation only where legacy Mozilla products remain in use. The impact is serious, but the issue dates to 2012 and the provided evidence does not show current exploitation. Mitigation focus: Upgrade Firefox to 16.0 or later, or ESR 10.0.8 or later.; Upgrade Thunderbird to 16.0 or later, or ESR 10.0.8 or later.; Upgrade SeaMonkey to 2.13 or later..

Prepared: Jun 27, 2026, 16:25 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: Oct 10, 2012, 17:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
oval:org.mitre.oval:def:16718CVE reference · vdb-entry, signature
firefox-cow-privilege-escalation(79153)CVE reference · vdb-entry, x_refsource_XF
https://bugzilla.mozilla.org/show_bug.cgi?id=768101CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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