CVE-2020-22844 — HIGH (7.5)

Vulnerability Description

A buffer overflow in Mikrotik RouterOS 6.47 allows unauthenticated attackers to cause a denial of service (DOS) via crafted SMB requests.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Mikrotik	Routeros	6.47

Related Weaknesses (CWE)

CWE-401

References

https://github.com/colorlight/mikrotik_poc/blob/master/two_vulns.mdThird Party Advisory
https://mikrotik.com/supportVendor Advisory
https://github.com/colorlight/mikrotik_poc/blob/master/two_vulns.mdThird Party Advisory
https://mikrotik.com/supportVendor Advisory

FAQ

What is CVE-2020-22844?

CVE-2020-22844 is a vulnerability with a CVSS score of 7.5 (HIGH). A buffer overflow in Mikrotik RouterOS 6.47 allows unauthenticated attackers to cause a denial of service (DOS) via crafted SMB requests.

How severe is CVE-2020-22844?

CVE-2020-22844 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-22844?

Check the references section above for vendor advisories and patch information. Affected products include: Mikrotik Routeros.