CVE-2018-12368
highpriority · track · 34EPSS 0.048 · 92 %ileEURUUSEPSS · scored 2026-10-27
Windows 10 does not warn users before opening executable files with the SettingContent-ms extension even when they have been downloaded from the internet and have the "Mark of the Web." Without the warning, unsuspecting users unfamiliar with this new file type might run an unwanted executable. This also allows a WebExtension with the limited downloads.open permission to execute arbitrary code without user interaction on Windows 10 systems. *Note: this issue only affects Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (16)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (31)
External citations — patches, advisories, analysis.
- http://www.securitytracker.com/id/1041193cnnvd
- https://bugzilla.mozilla.org/show_bug.cgi?id=1468217cnnvd
- https://posts.specterops.io/the-tale-of-settingcontent-ms-files-f1ea253e4d39cnnvd
- https://security.gentoo.org/glsa/201810-01cnnvd
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-15/Patchcnnvd
- https://www.mozilla.org/security/advisories/mfsa2018-15/cnnvd
- https://www.mozilla.org/security/advisories/mfsa2018-16/cnnvd
- https://www.mozilla.org/security/advisories/mfsa2018-17/cnnvd
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