vulnerability
MFSA2017-16 Firefox: Security vulnerabilities fixed in Firefox ESR 52.2 (CVE-2017-7761)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:L/Au:N/C:N/I:P/A:P) | Jun 13, 2017 | Jun 14, 2017 | Aug 11, 2025 |
Severity
4
CVSS
(AV:L/AC:L/Au:N/C:N/I:P/A:P)
Published
Jun 13, 2017
Added
Jun 14, 2017
Modified
Aug 11, 2025
Description
The Mozilla Maintenance Service "helper.exe" application creates a temporary directory writable by non-privileged users. When this is combined with creation of a junction (a form of symbolic link), protected files in the target directory of the junction can be deleted by the Mozilla 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.
Solution
mozilla-firefox-esr-upgrade-52_2
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.