TI-2018-08869 Aliases CVE-2018-12368 GHSA-ghmm-93ww-fvhh

Windows 10 does not warn users before opening executable files with the SettingContent-ms…

MEDIUM 43Published 2018-10-18 · Updated 2024-08-05

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.04831 92nd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed Thunderbird (Mozilla): 60, 52.9Firefox ESR (Mozilla): 60.1, 52.9+1 more product

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Mozilla	Thunderbird	before 60; before 52.9	60, 52.9	Patch available	CNA
Mozilla	Firefox ESR	before 60.1; before 52.9	60.1, 52.9	Patch available	CNA
Mozilla	Firefox	before 61	61	Patch available	CNA

Thunderbird VendorMozilla Affected before 60; before 52.9 Fixed in 60, 52.9 Patch available CNA
Firefox ESR VendorMozilla Affected before 60.1; before 52.9 Fixed in 60.1, 52.9 Patch available CNA
Firefox VendorMozilla Affected before 61 Fixed in 61 Patch available CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:mozilla:firefox::::::::	before 61.0; 53.0 to before 60.1.0	Vulnerable	Mozilla
cpe:2.3:a:mozilla:firefox_esr::::::::	before 52.9	Vulnerable	Mozilla
cpe:2.3:a:mozilla:thunderbird::::::::	before 52.9	Vulnerable	Mozilla
cpe:2.3:o:microsoft:windows_10::::::::	all versions	Running on	Microsoft

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 61.0; 53.0 to before 60.1.0 Vulnerable ·Mozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 52.9 Vulnerable ·Mozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 52.9 Vulnerable ·Mozilla
cpe:2.3:o:microsoft:windows_10:*:*:*:*:*:*:*:* Versions all versions Running on ·Microsoft

Remediation

Fix · CNA Thunderbird (Mozilla) Fixed in 60, 52.9
Fix · CNA Firefox ESR (Mozilla) Fixed in 60.1, 52.9
Fix · CNA Firefox (Mozilla) Fixed in 61

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 2 products

Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7

Timeline

2026-10-02 Threatist record created from CVE-2018-12368
2026-10-03 Alias added: GHSA-ghmm-93ww-fvhh

References

Exploit 1

https://posts.specterops.io/the-tale-of-settingcontent-ms-files-f1ea253e4d39

Advisory 7

TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8

See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences