Use-after-free vulnerability in the nsFrameList::FirstChild function in Mozilla Firefox 4.x through 12.0, Firefox ESR 10.x before 10.0.5, Thunderbird 5.0 through 12.0, Thunderbird ESR 10.x before 10.0.5, and SeaMonkey before 2.10 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) by changing the size of a container of absolutely positioned elements in a column.
Published 2012-06-05 23:55:02
Updated 2018-01-05 02:29:30
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Memory CorruptionExecute codeDenial of service

Exploit prediction scoring system (EPSS) score for CVE-2012-1940

Probability of exploitation activity in the next 30 days: 4.61%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 91 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2012-1940

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
9.3
HIGH AV:N/AC:M/Au:N/C:C/I:C/A:C
8.6
10.0
NIST

CWE ids for CVE-2012-1940

  • Assigned by: nvd@nist.gov (Primary)

References for CVE-2012-1940

Products affected by CVE-2012-1940

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