CVE-2012-3972: n/a vulnerability

CVE-2012-3972: The format-number functionality in the XSLT implementation in Mozilla Firefox before 15.0, Firefox ESR 10.x...

The format-number functionality in the XSLT implementation 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 obtain sensitive information via unspecified vectors that trigger a heap-based buffer over-read.

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

Security readout for executives and security teams

This is an old Mozilla browser and mail-client vulnerability where specially triggered XSLT number formatting could read beyond heap memory and expose sensitive information. The public record names Firefox, Firefox ESR, Thunderbird, Thunderbird ESR, and SeaMonkey versions fixed in 2012. Exposure is most likely on legacy desktops, embedded systems, or old Linux distributions still running affected Mozilla packages from before the 2012 updates. Modern maintained installations should generally be unaffected if vendor security updates were applied. Treat this as a legacy exposure cleanup item unless affected versions are still present. Prioritize remediation where old browsers or mail clients process untrusted web or email content. Mitigation focus: Upgrade affected Mozilla products to the fixed versions or later.; Apply relevant Debian, Red Hat, Ubuntu, or SUSE security updates.; Remove unsupported legacy Firefox, Thunderbird, or SeaMonkey installations..

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:16234CVE reference · vdb-entry, signature
https://bugzilla.mozilla.org/show_bug.cgi?id=746855CVE 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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