CVE-2019-11702 Security feature bypass in Firefox

What is CVE-2019-11702?

CVE-2019-11702 is a medium-severity vulnerability in Mozilla Firefox, published on 23 Jul 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A hyperlink using protocols associated with Internet Explorer, such as IE.HTTP:, can be used to open local files at a known location with Internet Explorer if a user approves execution when prompted. *Note: this issue only occurs on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 67.0.2.

Weakness: CWE-862

Which versions are affected by CVE-2019-11702?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2019-11702?

No fix has been published for CVE-2019-11702 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-11702 being exploited?

There is no known exploitation of CVE-2019-11702 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-wm33-w546-hfhw.