CVE-2026-67279
Mikrotik RouterOS Improper Enforcement of Behavioral Workflow Vulnerability
Mikrotik RouterOS contains an improper enforcement of behavioral workflow vulnerability that could allow an unauthenticated client to open a session channel and send an exec request. This vulnerability can be chained to achieve unauthenticated exploitation of CVE-2026-86060.
CISA due Sep 28, 2026
- MikroTik RouterOS
- Moderate
- CVSS 6.9
- EPSS 1.05%
- Fixed version listed
What to do
Fixed version listed
- Required action
- Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable.
- CISA deadline for US federal agencies
- Sep 28, 2026
Affected products
| Product | Affected | Fixed in |
|---|---|---|
| Mikrotik RouterOS | from 7.24, before 7.24.2; from 7.0.0, before 7.23.4; from 6.0.0, before 6.49.21 | 7.24.2, 7.23.4, 6.49.21 |
Advisories and fixes
- Vendor advisory mikrotik.com
- Public exploit npratley.net
Scores and signals
- Exploitation
- Exploited in the wild
- Severity
- Moderate, CVSS 6.9 (v4.0, scored by CERT-PL)
- EPSS
- 1.05% chance of exploitation in the next 30 days (EPSS from FIRST, as of Oct 23, 2026)
- CISA's SSVC decision points
- Exploitation: active. Automatable: yes. Technical impact: partial. As of Sep 25, 2026.
- Weakness
- CWE-841: Improper enforcement of behavioral workflow
- Vendor
- MikroTik, RouterOS
Timeline
- Added to CISA's Known Exploited Vulnerabilities catalog: exploited in the wild. US federal agencies must remediate by 2026-09-28.