Vulnerability · NVD

CVE-2020-12387

CVE-2020-12387, high severity (CVSS 8.1): 2 tracked apps concerned, all fixed or indeterminable on their current version.

Severity (CVSS): 8.1
Exploitation: 1.4 %
Tracked apps: 2
Still exposed: 0

Published on 2020-05-26

A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.

Attack vector : Network No privileges required No user interaction

Show raw CVSS vector

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

EPSS 1.44% above median percentile 72.5%

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 <76.0 Fixed in 76.0 Latest tracked 157.0.1 patched
Mozilla Thunderbird Windows winget:Mozilla.Thunderbird

Affected <68.8.0 Fixed in 68.8.0 Latest tracked 158.0 patched

Vulnerable CPE configurations (2)

Vendor	Product	Platform	Versions	CPE 2.3 URI
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	<76.0	cpe:2.3:a:mozilla:firefox::::::::
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	<68.8.0	cpe:2.3:a:mozilla:thunderbird::::::::

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