CVE-2017-20149 Memory corruption in n/a
Remote unauthenticated attackers can execute arbitrary code on Mikrotik RouterOS devices via crafted HTTP requests due to memory corruption.
- 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-2017-20149?
CVE-2017-20149 is a critical memory corruption vulnerability in Mikrotik Routeros, published on 15 Oct 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Mikrotik RouterOS web server allows memory corruption in releases before Stable 6.38.5 and Long-term 6.37.5, aka Chimay-Red. A remote and unauthenticated user can trigger the vulnerability by sending a crafted HTTP request. An attacker can use this vulnerability to execute arbitrary code on the affected system, as exploited in the wild in mid-2017 and later.
Weakness: CWE-787
Which versions are affected by CVE-2017-20149?
It affects 1 product.
Products include Mikrotik Routeros.
How do I fix CVE-2017-20149?
No fix has been published for CVE-2017-20149 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-2017-20149 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-20149 exists.
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-qjvr-7h9f-927v.