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CVE-2012-1940

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,…

High9.3EPSS 4.4%
Published
Updated
Reserved
Assigned by
mitre

Description

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.

Scores

CVSS scores of CVE-2012-1940, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified2.0High9.3AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS (exploitation in 30 days)
4.4% · top 8.6% of all CVEs (2 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 9.3.

Weakness

Affected products

  • n/a

    • affected n/a

References (12)

Sources

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Record last updated .