CVE-2020-15657

HIGH

Mozilla Firefox < 79.0 - Uncontrolled Search Path

Title source: rule

Description

Firefox could be made to load attacker-supplied DLL files from the installation directory. This required an attacker that is already capable of placing files in the installation directory. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

References (5)

[Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html

[Issue Tracking, Permissions Required, Vendor Advisory] https://bugzilla.mozilla.org/show_bug.cgi?id=1644954

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2020-30/

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2020-32/

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2020-33/

Scores

CVSS v3 7.8

EPSS 0.0020

EPSS Percentile 41.9%

Attack Vector LOCAL

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

Classification

CWE

CWE-427

Status published

Affected Products (3)

mozilla/firefox < 79.0

mozilla/firefox_esr < 78.1

mozilla/thunderbird < 78.1

Timeline

Published Aug 10, 2020

Tracked Since Feb 18, 2026