CVE-2017-7766

7.8 HIGH
Published: June 11, 2018 Modified: November 25, 2025

Description

An attack using manipulation of "updater.ini" contents, used by the Mozilla Windows Updater, and privilege escalation through the Mozilla Maintenance Service to allow for arbitrary file execution and deletion by the Maintenance Service, which has privileged access. Note: This attack requires local system access and only affects Windows. Other operating systems are not affected. This vulnerability affects Firefox ESR < 52.2 and Firefox < 54.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securityfocus.com/bid/99057
Source: security@mozilla.org
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038689
Source: security@mozilla.org
Third Party Advisory VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1342742
Source: security@mozilla.org
Issue Tracking Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-15/
Source: security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-16/
Source: security@mozilla.org
Vendor Advisory
http://www.securityfocus.com/bid/99057
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038689
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1342742
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-15/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-16/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

10 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.8 / 10.0
EPSS (Exploit Probability)
0.2%
39th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

mozilla microsoft