CVE-2012-4180: n/a vulnerability

CVE-2012-4180: Heap-based buffer overflow in the nsHTMLEditor::IsPrevCharInNodeWhitespace function in Mozilla Firefox befo...

Heap-based buffer overflow in the nsHTMLEditor::IsPrevCharInNodeWhitespace function 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 allows remote attackers to execute arbitrary code via unspecified vectors.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 20:28 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2012-4180 is an old Mozilla memory-safety flaw that could let a remote attacker run code in vulnerable Mozilla applications. The source bundle names fixed releases from 2012, so current business risk is concentrated in unsupported legacy systems, frozen images, and old Linux packages. Likely exposure is legacy browsers, mail clients, kiosk systems, lab machines, or Linux distributions still carrying the vulnerable Mozilla versions. Normal modern Firefox, Thunderbird, and SeaMonkey installations should be beyond the listed fixed versions, but inventory should verify this rather than assume it. Prioritize remediation if any legacy Mozilla applications remain in production, email-handling workflows, shared desktops, or regulated environments. If inventory confirms only currently supported versions, this is mainly a historical hygiene item rather than an emergency response issue. Mitigation focus: Upgrade affected Mozilla products to the fixed versions or later.; Apply relevant operating-system vendor updates for packaged Mozilla builds.; Remove unsupported legacy Firefox, Thunderbird, and SeaMonkey installations..

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

Conservative CVE-to-ATT&CK context

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Execution behavior lookup

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CVE-2012-4180 mapping review

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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
https://bugzilla.mozilla.org/show_bug.cgi?id=785720CVE reference · x_refsource_CONFIRM
oval:org.mitre.oval:def:16428CVE reference · vdb-entry, signature
firefox-isprevcharinnode-bo(79158)CVE reference · vdb-entry, x_refsource_XF

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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