Security Advisory
CVE-2026-86060
N/A
UNKNOWN
Vulnerability Description
RouterOS contains an argument-handling flaw in the SSH login
path involving usernames that begin with a prohibited character, allowing for the trusted RouterOS policy mask to be changed, leading to privilege escalation. Exploitation requires an unauthenticated SSH session to reach the RouterOS login helper.This issue was fixed in versions: 6.49.21 (Long-term), 7.23.4 (Long-term) and 7.24.2 (Stable)
Published Date
September 5, 2026
Official Source
NIST NVD Advisory