CVE-2020-20250: Null Pointer Dereference
First published: Tue Jul 13 2021(Updated: )
Mikrotik RouterOs before stable version 6.47 suffers from a memory corruption vulnerability in the /nova/bin/lcdstat process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference). NOTE: this is different from CVE-2020-20253 and CVE-2020-20254. All four vulnerabilities in the /nova/bin/lcdstat process are discussed in the CVE-2020-20250 github.com/cq674350529 reference.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| MikroTik RouterOS | <6.47 |
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Reference Links
Frequently Asked Questions
What is CVE-2020-20250?
CVE-2020-20250 is a memory corruption vulnerability in the /nova/bin/lcdstat process of Mikrotik RouterOS before version 6.47.
How does CVE-2020-20250 affect MikroTik RouterOS?
An authenticated remote attacker can exploit CVE-2020-20250 to cause a Denial of Service (NULL pointer dereference) on MikroTik RouterOS.
What is the severity of CVE-2020-20250?
CVE-2020-20250 has a severity rating of 6.5 (Medium).
How can I mitigate CVE-2020-20250?
Upgrade your MikroTik RouterOS to version 6.47 or later to mitigate CVE-2020-20250.
Where can I find more information about CVE-2020-20250?
You can find more information about CVE-2020-20250 on the GitHub repository and the MikroTik website.
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