CVE-2020-22845 Memory corruption in n/a
Unauthenticated attackers can cause a denial of service on Mikrotik RouterOS devices by sending crafted FTP requests that trigger a buffer overflow.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-22845?
CVE-2020-22845 is a high-severity memory corruption vulnerability in Mikrotik Routeros, published on 28 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A buffer overflow in Mikrotik RouterOS 6.47 allows unauthenticated attackers to cause a denial of service (DOS) via crafted FTP requests.
Weakness: CWE-120
Which versions are affected by CVE-2020-22845?
It affects 1 product.
Products include Mikrotik Routeros.
How do I fix CVE-2020-22845?
No fix has been published for CVE-2020-22845 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-22845 being exploited?
There is no known exploitation of CVE-2020-22845 in the wild and no public exploit code.
Other vulnerabilities in Mikrotik Routeros
- CVE-2018-7445 MikroTik RouterOS Stack-Based Buffer Overflow
- CVE-2026-86060 MikroTik RouterOS Improper Neutralization of Argument Delimiters in a Command
- CVE-2018-14847 MikroTik Router OS Directory Traversal
- CVE-2026-67277 MikroTik RouterOS Missing Authentication for Critical Function
- CVE-2026-67279 Mikrotik RouterOS Improper Enforcement of Behavioral Workflow
Sources
Also known as GHSA-jqx3-4wc3-67jj.