CVE-2026-86060 Mikrotik — Exploit & Vulnerability Details CRITICAL

Parameter	Value
CVSS	9.2 (CRITICAL)
Affected Versions	6.0 — 7.24.2
Fixed In	7.24.2
Type	CWE-88
Vendor	Mikrotik
Public PoC	Yes

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)

Attack Parameters

Attack Vector

Network

Can be exploited remotely

Attack Complexity

Low

Easy to exploit

Attack Requirements

Present

Additional conditions required

Privileges Required

None

No privileges needed

User Interaction

None

No user interaction needed

Impact Assessment

Confidentiality

High

Complete data leak

Integrity

High

Complete data modification

Availability

High

Complete denial of service

CVSS Vector v4.0

Weakness Type (CWE)

CWE-88

Vulnerable Products 6

Configuration	From (including)	Up to (excluding)
Mikrotik Routeros cpe:2.3:a:mikrotik:routeros::::::::	`7.24`	`7.24.2`
Mikrotik Routeros cpe:2.3:a:mikrotik:routeros::::::::	`7.0.0`	`7.23.4`
Mikrotik Routeros cpe:2.3:a:mikrotik:routeros::::::::	`6.0.0`	`6.49.21`
Mikrotik Routeros cpe:2.3:o:mikrotik:routeros::::::::	`6.0`	`6.49.21`
Mikrotik Routeros cpe:2.3:o:mikrotik:routeros::::::::	`7.0`	`7.23.4`
Mikrotik Routeros cpe:2.3:o:mikrotik:routeros::::::::	`7.24`	`7.24.2`