CVE-2012-4218

CriticalCVSS 10.0/10Last modified Jun 16, 2026

Description

Use-after-free vulnerability in the BuildTextRunsScanner::BreakSink::SetBreaks function in Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.

Metrics

CVSS 2.0 10.0/10AV:N/AC:L/Au:N/C:C/I:C/A:C

Weakness enumeration

CWE-416

Affected software

No affected versions have been published.

Timeline

Published
Nov 21, 2012
Last modified
Jun 16, 2026
NVD status
Modified

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CVE-2012-4218: Critical severity, CVSS 10.0 | Vulnix