CVE-2017-7755

Description

The Firefox installer on Windows can be made to load malicious DLL files stored in the same directory as the installer when it is run. This allows privileged execution if the installer is run with elevated privileges. Note: This attack only affects Windows operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

Category

7.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.43%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Affected: Mozilla Firefox ESR
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/99057 third party advisory vdb entry
https://www.mozilla.org/security/advisories/mfsa2017-15/ vendor advisory
http://www.securitytracker.com/id/1038689 third party advisory vdb entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1361326 vendor advisory issue tracking
https://www.mozilla.org/security/advisories/mfsa2017-17/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2017-16/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-7755?
CVE-2017-7755 has been scored as a high severity vulnerability.
How to fix CVE-2017-7755?
To fix CVE-2017-7755, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-7755 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-7755 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-7755?
CVE-2017-7755 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Thunderbird.
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