CVE-2026-86060 — SSH session privilege manipulation via a crafted username in Mikrotik RouterOS
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…
Published: 2026-09-05 · CVSS: 9.2 · CVSS 4.0
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)
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7