THREAT OPS › Threat News › MikroTik RouterOS and Cloud Hosted Router
MikroTik RouterOS and Cloud Hosted Router
<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-209-05.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>Successful exploitation of this vulnerability could allow attackers to rapidly guess passwords and gain unauthorized system access.</strong></p> <p>The following versions of MikroTik RouterOS and Cloud Hosted Router are affected:</p>
MITRE ATT&CK techniques
Indicators of compromise
- CVE-2026-16347cve
- https://www.cve.org/CVERecord?id=CVE-2026-16347url
- https://mikrotik.com/supporturl
- https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hurl
- https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Nurl
Original source: https://www.cisa.gov/news-events/ics-advisories/icsa-26-209-05
Same event, other sources
- MikroTik RouterOS and Cloud Hosted Routercisa_advisories · 2026-07-28