CVE-2026-86060 MikroTik RouterOS: software flaw
In plain words: A mistake in the software that attackers have found a way to abuse. Depends on the product — see the description and the vendor advisory.
Confirmed exploited by CISA on · US federal patch deadline Sep 13, 2026
What to do
- Install MikroTik's security update for RouterOS. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Turn on automatic firmware updates and replace gear the maker no longer supports.
- Change default passwords and switch off remote administration and features you do not use.
- Do not put storage boxes or cameras directly on the internet — use the maker's app or a VPN.
Who is affected
Could reach you. This one is aimed at devices or apps of the kind people own.
What's at risk: Taken over in bulk to join botnets, used to watch your traffic, or — for storage boxes — locked by ransomware.
The details
- Official name
- MikroTik RouterOS Improper Neutralization of Argument Delimiters in a Command Vulnerability
- Product
- MikroTik RouterOS
- CISA description
- MikroTik RouterOS contains an improper neutralization of argument delimiters in a command vulnerability which allows an attacker to change the trusted RouterOS policy mask, leading to privilege escalation.
- Type of flaw
- Software flaw (CWE-88)
- Confirmed exploited
- Sep 10, 2026
- US federal patch deadline
- Sep 13, 2026
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Answering about CVE-2026-86060 ·
Questions about CVE-2026-86060
Is CVE-2026-86060 being exploited?
Yes. CISA added CVE-2026-86060 to its Known Exploited Vulnerabilities catalog on Sep 10, 2026, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2026-86060?
Install MikroTik's security update for RouterOS. If no update exists, follow the vendor's workaround or stop using the product until one ships. Turn on automatic firmware updates and replace gear the maker no longer supports.
Am I affected by CVE-2026-86060?
Only if you use MikroTik RouterOS. This one is aimed at devices or apps of the kind people own.