Mikrotik vulnerabilities & exploitation

Exploitation timeline

Threadlinqs has recorded 6 Mikrotik CVEs published between 2026-09-15 and 2026-09-15. The busiest month was 2026-09 (6 new CVEs). None of them is listed in CISA KEV yet.

Most exploited vulnerabilities

Ranked with CISA KEV listings first, then EPSS exploit probability, then CVSS score. Showing 6 of 6 tracked Mikrotik CVEs.

• CVE-2026-67281high 8.7EPSS 0.5%2026-09-05
• CVE-2026-67279medium 6.9EPSS 0.4%2026-09-05
• CVE-2026-67277high 8.8EPSS 0.4%2026-09-05
• CVE-2026-86060critical 9.2EPSS 0.4%2026-09-05
• CVE-2026-67276critical 9.2EPSS 0.2%2026-09-05
• CVE-2026-67278medium 6.3EPSS 0.2%2026-09-05

Products affected

Threadlinqs normalises CPE and CNA product records across all 6 CVEs; 1 distinct Mikrotik product is affected. The most frequently affected:

• RouterOS 6 CVEs

Threat activity

7 tracked threat campaigns reference Mikrotik products or exploit Mikrotik CVEs:

• Critical MikroTik RouterOS Integer Underflow Vulnerability (CVE-2026-84411) Enables Unauthenticated Remote Code ExecutionCRITICAL2026-09-30
• CISA Adds Two Actively Exploited KEVs: SharePoint Code Injection (CVE-2026-65660) and Mikrotik RouterOS Auth Bypass (CVE-2026-67279)CRITICAL2026-09-26
• CISA Adds Actively Exploited WSO2 API Manager and Adobe Commerce Flaws to KEV Catalog, Warns on SharePoint Code InjectionCRITICAL2026-09-25
• Large-Scale Azure-Hosted Tech Support Scam Campaign Targets Japan (13.38M Emails, 240K+ Relay IPs, 33K+ Disposable Azure Blob Storage Sites)HIGH2026-09-21
• BambooToken Malware Uses MQTT Protocol for Cross-Platform Windows/Linux C2HIGH2026-09-15
• Attackers Hijack MikroTik Routers Through Internet-Exposed SSH Without Authentication (MikroTrick)CRITICAL2026-09-06
• Forest Blizzard (Russian GRU Unit 26165) SOHO Router DNS-Hijacking Campaign Enables AitM Credential Theft Against Outlook Web Access — Operation MasqueradeHIGH2026-07-18

Threat actors targeting Mikrotik

Named threat actors attributed to campaigns that involve Mikrotik products or CVEs, with the number of linked campaigns:

• APT28 1

How to prioritise Mikrotik patching

This order follows the data Threadlinqs holds for Mikrotik, not a generic severity checklist:

• No Mikrotik CVE is in CISA KEV yet, so rank by exploit probability instead.
• Outside KEV, the highest EPSS scores are CVE-2026-67281 (0.5%), CVE-2026-67279 (0.4%), CVE-2026-67277 (0.4%).
• 2 CVEs score Critical and 2 High on CVSS v3 (maximum 9.2, average 8.2); sequence these after KEV and high-EPSS items.
• 6 CVEs have a public exploit or proof of concept recorded, which shortens the time from disclosure to attack.

About this data

Vendor attribution comes from the CNA and CPE product records of each CVE, folded to one vendor name; CVSS, EPSS and KEV status are read from the Threadlinqs CVE catalog; campaign and actor links come from tracked threat records. Counts reflect the data as of 2026-10-05 and refresh daily.