CVE-2012-3969: n/a vulnerability

CVE-2012-3969: Integer overflow in the nsSVGFEMorphologyElement::Filter function in Mozilla Firefox before 15.0, Firefox E...

Integer overflow in the nsSVGFEMorphologyElement::Filter function in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 allows remote attackers to execute arbitrary code via a crafted SVG filter that triggers an incorrect sum calculation, leading to a heap-based buffer overflow.

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

Security readout for executives and security teams

CVE-2012-3969 is a memory corruption flaw in Mozilla’s SVG filter handling. A malicious page or message content using a crafted SVG filter could trigger a heap buffer overflow and potentially run code in vulnerable Firefox, Thunderbird, or SeaMonkey versions. Urgency is mainly for environments still running these legacy versions or related vendor packages. Exposure is most likely on unmanaged legacy desktops, old Linux distributions, embedded products, or systems pinned to obsolete Mozilla packages. Modern supported Mozilla releases should not be affected based on the fixed versions listed in the CVE description. Treat this as high priority only if legacy Mozilla software remains present. The business risk is remote code execution through content rendering, but the issue is from 2012 and no active exploitation evidence is provided in the source bundle. Mitigation focus: Upgrade Firefox to 15.0 or later where applicable.; Upgrade Firefox ESR 10.x to 10.0.7 or later.; Upgrade Thunderbird to 15.0 or later where applicable..

Prepared: Jun 28, 2026, 00:52 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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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Aug 29, 2012, 10:00 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
oval:org.mitre.oval:def:16635CVE reference · vdb-entry, signature
https://bugzilla.mozilla.org/show_bug.cgi?id=782141CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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