CVE-2012-0459: n/a vulnerability

CVE-2012-0459: The Cascading Style Sheets (CSS) implementation in Mozilla Firefox 4.x through 10.0, Firefox ESR 10.x befor...

The Cascading Style Sheets (CSS) implementation in Mozilla Firefox 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via dynamic modification of a keyframe followed by access to the cssText of the keyframe.

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

Security readout for executives and security teams

This is a 2012 Mozilla browser and mail client flaw in CSS animation handling. A malicious page or message could crash the application and may have allowed code execution. The business risk is mainly legacy exposure: modern patched Mozilla products should not be affected, but old unmanaged systems running listed versions need removal or update. Exposure is most likely on legacy desktops, kiosks, lab systems, or old server images still running the affected Mozilla versions. Current source data does not identify affected CPEs or supported modern products. Treat as a legacy hygiene issue with high technical impact if affected software exists. It should not outrank actively exploited current vulnerabilities, but any confirmed affected endpoint should be updated or retired promptly. Mitigation focus: Upgrade Firefox ESR to 10.0.3 or later where legacy ESR remains in use.; Upgrade SeaMonkey to 2.8 or later where present.; Upgrade Thunderbird ESR to 10.0.3 or later where legacy clients remain..

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

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CVE-2012-0459 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=723446CVE reference · x_refsource_CONFIRM
oval:org.mitre.oval:def:15066CVE 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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