Detailed analysis and proof-of-concept (PoC) code for vulnerabilities like CVE-2021-41987 are publicly available.
Vulnerability Exposure & Notification on Mikrotik (CVE-2021-41987)
This vulnerability specifically affects RouterOS versions 6.46.8, 6.47.9, and 6.47.10 . Other Relevant Vulnerabilities
Security researchers have found exploits for these versions in the Command and Control (C2) servers of advanced persistent threat (APT) groups like HUAPI (also known as BlackTech).