CVE-2017-7760
mediumpriority · track · 31EPSS 0.004 · 34 %ileEUUSEPSS · scored 2026-10-27
The Mozilla Windows updater modifies some files to be updated by reading the original file and applying changes to it. The location of the original file can be altered by a malicious user by passing a special path to the callback parameter through the Mozilla Maintenance Service, allowing the manipulation of files in the installation directory and privilege escalation by manipulating 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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.6–7.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (15)
External citations — patches, advisories, analysis.
- http://www.securityfocus.com/bid/99057cnnvd
- https://bugzilla.mozilla.org/show_bug.cgi?id=1348645cnnvd
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-15/Patchcnnvd
- https://www.mozilla.org/security/advisories/mfsa2017-15/cnnvd
- https://www.mozilla.org/security/advisories/mfsa2017-16/cnnvd
- http://www.securityfocus.com/bid/99057enisa_euvd
- http://www.securitytracker.com/id/1038689enisa_euvd
- https://bugzilla.mozilla.org/show_bug.cgi?id=1348645enisa_euvd
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