CVE-2020-15657 Other in Firefox
An attacker with file write access to the installation directory can force Firefox to load malicious DLLs, leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-15657?
CVE-2020-15657 is a high-severity vulnerability in Mozilla Firefox, published on 10 Aug 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Firefox could be made to load attacker-supplied DLL files from the installation directory. This required an attacker that is already capable of placing files in the installation directory. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.
Weakness: CWE-427
Which versions are affected by CVE-2020-15657?
It affects 3 products.
Products include Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.
How do I fix CVE-2020-15657?
Upgrade to a fixed version.
Is CVE-2020-15657 being exploited?
There is no known exploitation of CVE-2020-15657 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-vxw8-wvxp-5f2r.