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CVE-2012-3966

Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey…

High10.0EPSS 5.2%
Published
Updated
Reserved
Assigned by
mitre

Description

Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a negative height value in a BMP image within a .ICO file, related to (1) improper handling of the transparency bitmask by the nsICODecoder component and (2) improper processing of the alpha channel by the nsBMPDecoder component.

Scores

CVSS scores of CVE-2012-3966, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified2.0High10.0AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (exploitation in 30 days)
5.2% · top 7.5% 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 10.0.

Weakness

Affected products

  • n/a

    • affected n/a

References (12)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .