Vulnerability · NVD

CVE-2020-15663

CVE-2020-15663, high severity (CVSS 8.8): 2 tracked apps concerned, all fixed or indeterminable on their current version.

Severity (CVSS): 8.8
Exploitation: 2.7 %
Tracked apps: 2
Still exposed: 0

Published on 2020-10-01

If Firefox is installed to a user-writable directory, the Mozilla Maintenance Service would execute updater.exe from the install location with system privileges. Although the Mozilla Maintenance Service does ensure that updater.exe is signed by Mozilla, the version could have been rolled back to a previous version which would have allowed exploitation of an older bug and arbitrary code execution with System Privileges. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox < 80, Thunderbird < 78.2, Thunderbird < 68.12, Firefox ESR < 68.12, and Firefox ESR < 78.2.

Attack vector : Network No privileges required

Show raw CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS 2.72% above median percentile 85.6%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Mozilla Firefox Windows winget:Mozilla.Firefox

Affected ≥78.0 <78.2 Fixed in 78.2 Latest tracked 157.0.1 patched
Mozilla Thunderbird Windows winget:Mozilla.Thunderbird

Affected ≥68.0 <68.12 Fixed in 68.12 Latest tracked 157.0.1 patched

Observed affected builds (3)

68.10.0 68.9.0 68.8.0

Vulnerable CPE configurations (4)

Vendor	Product	Platform	Versions	CPE 2.3 URI
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	<80.0	cpe:2.3:a:mozilla:firefox::::::::
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	≥78.0 <78.2	cpe:2.3:a:mozilla:firefox::::::::
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	≥68.0 <68.12	cpe:2.3:a:mozilla:thunderbird::::::::
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	≥78.0 <78.2	cpe:2.3:a:mozilla:thunderbird::::::::

View on NVD ↗ Advisory · bugzilla.mozilla.org Advisory · www.mozilla.org

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