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CVE-2018-12366

An invalid grid size during QCMS (color profile) transformations can result in the out-of-bounds read interpreted as a float value. This…

Medium6.5EPSS 3.2%
Published
Updated
Reserved
Assigned by
mozilla

Description

An invalid grid size during QCMS (color profile) transformations can result in the out-of-bounds read interpreted as a float value. This could leak private data into the output. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

Scores

CVSS scores of CVE-2018-12366, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.0Medium6.5CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS (exploitation in 30 days)
3.2% · top 12% 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: Medium 6.5.

Weakness

Affected products

  • Mozilla · Thunderbird

    • affected unspecified – < 60
    • affected unspecified – < 52.9

  • Mozilla · Firefox ESR

    • affected unspecified – < 60.1
    • affected unspecified – < 52.9

  • Mozilla · Firefox

    • affected unspecified – < 61

References (20)

Sources

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

Record last updated .