Risk Letters

Exploited vulnerability

CVE-2026-67279

TLP:CLEAR

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.

Facts

  • Vendor: MikroTik
  • Product: RouterOS
  • CVSS: 6.9
  • EPSS (probability of exploitation within 30 days): 2.3 %
  • On CISA's Known Exploited Vulnerabilities list since: 25 September 2026
  • First known exploitation: 25 September 2026
  • CISA's deadline for US federal agencies: 28 September 2026
  • Weakness: CWE-841
  • First seen by Risk Letters: 25 September 2026

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD