CVE-2016-5295 Privilege escalation in Firefox

What is CVE-2016-5295?

CVE-2016-5295 is a high-severity vulnerability in Mozilla Firefox, published on 11 Jun 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

This vulnerability allows an attacker to use the Mozilla Maintenance Service to escalate privilege by having the Maintenance Service invoke the Mozilla Updater to run malicious local files. This vulnerability requires local system access and is a variant of MFSA2013-44. Note: this issue only affects Windows operating systems. This vulnerability affects Firefox < 50.

Weakness: CWE-264

Which versions are affected by CVE-2016-5295?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2016-5295?

Upgrade to a fixed version.

Is CVE-2016-5295 being exploited?

There is no known exploitation of CVE-2016-5295 in the wild and no public exploit code.

Other vulnerabilities in Mozilla Firefox

• CVE-2019-11708 Mozilla Firefox and Thunderbird Sandbox Escape Exploited Critical 10.0
• CVE-2010-3765 Mozilla Multiple Products Remote Code Execution Exploited Critical 9.8
• CVE-2022-26486 Mozilla Firefox Use-After-Free Exploited Critical 9.6
• CVE-2022-26485 Mozilla Firefox Use-After-Free Exploited High 8.8
• CVE-2019-11707 Mozilla Firefox and Thunderbird Type Confusion Exploited High 8.8

All Mozilla Firefox vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-2h24-5rmg-2c3m.