CVE-2020-35112 Other in Firefox
Attackers can execute arbitrary code on Windows by tricking users into opening a file without an extension that matches a malicious executable in the downloads directory.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-35112?
CVE-2020-35112 is a high-severity vulnerability in Mozilla Firefox, published on 7 Jan 2021. 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
If a user downloaded a file lacking an extension on Windows, and then "Open"-ed it from the downloads panel, if there was an executable file in the downloads directory with the same name but with an executable extension (such as .bat or .exe) that executable would have been launched instead. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
Which versions are affected by CVE-2020-35112?
It affects 3 products.
Products include Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.
How do I fix CVE-2020-35112?
Upgrade to a fixed version.
Is CVE-2020-35112 being exploited?
There is no known exploitation of CVE-2020-35112 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-c2mj-qmxh-xhgx, UBUNTU-CVE-2020-35112.