AL26-020 - Vulnerabilities Impacting MikroTik RouterOS - CVE-2026-67276, CVE-2026-67277 and CVE-2026-86060
Canada's Cyber Centre warns of three exploited MikroTik RouterOS vulnerabilities affecting SSH-exposed devices; CISA added two to its KEV catalog.
The Canadian Centre for Cyber Security issued alert AL26-020 for three MikroTik RouterOS vulnerabilities, especially on devices exposing SSH to the internet: CVE-2026-67277 (missing authentication, CWE-306, enabling sensitive information disclosure), CVE-2026-86060 (argument injection, CWE-88, enabling privilege escalation), and CVE-2026-67276 (improper cryptographic signature verification, CWE-347, allowing SSH command channel access without the private key). On September 10, 2026, CISA added CVE-2026-67277 and CVE-2026-86060 to its Known Exploited Vulnerabilities catalog. Fixed versions include RouterOS 6.49.21, 7.23.4 (Long-Term), 7.24.2 (Stable), and 7.25 beta 3.
- CISA added CVE-2026-67277 and CVE-2026-86060 to the KEV database on September 10, 2026
- CVE-2026-67276 lets attackers forge signatures and open SSH command channels as the target user without the private key
- Cyber Centre urges prioritizing internet-exposed SSH systems and checking logs for MikroTik 'Flagged' compromise indicators
- MikroTik and CERT Polska guidance recommends immediate updates and log review for unauthorized access
- Products
- RouterOS
- Organizations
- Canadian Centre for Cyber SecurityCISACERT Polska
- Countries
- CanadaUnited StatesPoland
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
CVE-2026-86060+2 related CVEs | Argument-Injection Flaw in MikroTik RouterOS SSH Login Enables Privilege Escalation | 9.2 group max | 6% | KEVPoC ×3 | KEV |
From the original article
2 min read at cyber.gc.ca
Number: AL26-020 Date: September 10, 2026 Audience This Alert is intended for IT professionals and managers. Purpose An Alert is used to raise awareness of a recently identified cyber threat that may impact cyber information assets, and to provide additional detection and mitigation advice to recipients.
cyber.gc.ca
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