CVE-2020-37107 Core FTP LE 2.2 - Denial of Service
Attackers can crash Core FTP LE by pasting a large buffer into the account field, causing the application to become unresponsive.
- 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
- None listed
What is CVE-2020-37107?
CVE-2020-37107 is a medium-severity denial of service vulnerability in Core FTP LE, published on 6 Feb 2026. 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
Core FTP LE 2.2 contains a denial of service vulnerability that allows attackers to crash the application by overwriting the account field with a large buffer. Attackers can create a text file with 20,000 repeated characters and paste it into the account field to cause the application to become unresponsive and require reinstallation.
Weakness: CWE-120
Which versions are affected by CVE-2020-37107?
How do I fix CVE-2020-37107?
No fix has been published for CVE-2020-37107 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-37107 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37107 exists.
Sources
Also known as GHSA-3jf7-cmmw-4r75.