CVE-2017-7768

The Mozilla Maintenance Service can be invoked by an unprivileged user to read 32 bytes of any arbitrary file on the local system by convincing the service that it is reading a status file provided by the Mozilla Windows Updater. The Mozilla Maintenance Service executes with privileged access, bypassing system protections against unprivileged users. 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.

• CWE-200

• http://www.securityfocus.com/bid/99057Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1038689Third Party Advisory, VDB Entry
• https://bugzilla.mozilla.org/show_bug.cgi?id=1336979Issue Tracking, Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-15/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-16/Vendor Advisory
• http://www.securityfocus.com/bid/99057Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1038689Third Party Advisory, VDB Entry
• https://bugzilla.mozilla.org/show_bug.cgi?id=1336979Issue Tracking, Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-15/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-16/Vendor Advisory

Published

Jun 11, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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