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Case File

CVE-2012-4214

HIGH · CVSS 9.3 EPSS 6.07%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2012-11-21 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

CVE
CVE-2012-4214
Severity
HIGH
CVSS
9.3
EPSS
6.07%
Firefox

Original Filing — NVD Description

Use-after-free vulnerability in the nsTextEditorState::PrepareEditor function in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors, a different vulnerability than CVE-2012-5840.