CVE-2012-0463: n/a vulnerability

CVE-2012-0463: The nsWindow implementation in the browser engine in Mozilla Firefox before 3.6.28 and 4.x through 10.0, Fi...

The nsWindow implementation in the browser engine in Mozilla Firefox before 3.6.28 and 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird before 3.1.20 and 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 does not check the validity of an instance after event dispatching, which allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors, as demonstrated by Mobile Firefox on Android.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 18:23 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Mozilla browser-engine memory safety issue. A malicious remote input could crash affected Firefox, Thunderbird, SeaMonkey, or Mobile Firefox, and the CVE says arbitrary code execution may be possible. Business urgency mainly applies where legacy Mozilla software remains installed. Exposure is most likely in legacy endpoints, embedded systems, old Linux images, or unmanaged desktops running the listed Mozilla versions. Current supported Mozilla releases are not identified as affected in the provided sources. Treat as high priority only where legacy Mozilla software remains in use. The vulnerability is old, but the impact includes possible code execution in client software that processes remote content. Mitigation focus: Upgrade affected Mozilla products beyond the vulnerable version ranges listed in the CVE.; Prioritize removal of unsupported Firefox, Thunderbird, and SeaMonkey versions from managed endpoints.; Check Mozilla and operating-system vendor advisories for exact fixed packages..

Prepared: Jun 24, 2026, 12:52 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

Conservative CVE-to-ATT&CK context

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Execution behavior lookup

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CVE-2012-0463 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Mar 14, 2012, 19:00 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

3Source 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
https://bugzilla.mozilla.org/show_bug.cgi?id=688208CVE reference · x_refsource_CONFIRM
oval:org.mitre.oval:def:15143CVE reference · vdb-entry, signature

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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