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Vulnerabilities in Mikrotik RouterOS software

ID: f3b5a8ce-a5f6-5950-91ca-86d278ce830f

STIX ID: report--f3b5a8ce-a5f6-5950-91ca-86d278ce830f

Feed Name: CERT Polska

Threat Score
80/100

Date Published: 2026-09-05

Date Updated: 2026-09-10

Author: CERT Polska

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CERT.PL published a coordinated disclosure of multiple serious vulnerabilities in MikroTik RouterOS (six CVEs) that affect many 6.x and 7.x releases. The issues include SSH authentication bypasses (incomplete RSA key checks and rekey authentication bypass), acceptance of malformed RSA signatures enabling TLS impersonation, unauthenticated file-read allowing disclosure of root-owned files, argument-handling flaws leading to privilege escalation, and a kernel crash via packet handling; fixes are available in RouterOS 6.49.21, 7.23.4 and 7.24.2.

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