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.
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Affected Vendors & Products
References
History
Tue, 25 Nov 2025 18:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | ||
| Vendors & Products |
Mozilla firefox Esr
|
Status: PUBLISHED
Assigner: mozilla
Published: 2018-06-11T21:00:00
Updated: 2024-08-05T16:12:28.276Z
Reserved: 2017-04-12T00:00:00
Link: CVE-2017-7761
No data.
Status : Modified
Published: 2018-06-11T21:29:08.297
Modified: 2025-11-25T17:50:16.803
Link: CVE-2017-7761
No data.