RouterOS vulnerabilities: known CVEs & security history
MikroTik · Actively exploited · 7 tracked CVEs · 2 actively exploited · updated September 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all RouterOS release lines — 7 in total, with 2 actively exploited in the wild. A CVE here doesn't mean your version is affected — check RouterOS's current status and the safe version to run.
Known RouterOS CVEs
Actively-exploited and most-severe first. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2026-86060⚡ exploited | critical | 9.8 | 1% | 2026 |
| CVE-2026-67277⚡ exploited | high | 8.2 | 1% | 2026 |
| CVE-2020-20021 | high | 7.5 | 1% | 2023 |
| CVE-2023-24094 | high | 7.5 | 1% | 2023 |
| CVE-2020-20212 | medium | 6.5 | 2% | 2021 |
| CVE-2020-20211 | medium | 6.5 | 2% | 2021 |
| CVE-2017-6297 | medium | 5.9 | 1% | 2017 |
Is my RouterOS version affected?
The list above spans every release. To know whether your version is affected — and the minimum safe version to upgrade to — check it directly.
Check your RouterOS version → · Monitor RouterOS for new CVEs →
RouterOS vulnerabilities — frequently asked
How many known vulnerabilities does RouterOS have?
IsItPatched tracks 7 CVEs for RouterOS, 2 of which are actively exploited (CISA KEV). 1 is critical-severity and 3 high-severity. These span every release line — what matters is whether the version you run is affected.
Does RouterOS have any actively-exploited vulnerabilities?
Yes — 2 RouterOS CVEs are in CISA's Known Exploited Vulnerabilities catalog, meaning they are confirmed exploited in the wild. Patch these as a priority.
What is the most severe RouterOS vulnerability?
Among tracked issues, CVE-2026-86060 (CRITICAL, CVSS 9.8), which is actively exploited, ranks highest — a CWE-88 weakness.
Is RouterOS safe to use?
It depends on the version. The latest supported RouterOS release clears the known issues; older versions may still be affected. Check the exact version you run for a verdict.
CVE data aggregated from NVD, CISA KEV and EPSS (FIRST.org). Related: RouterOS security status · RouterOS end-of-life · actively-exploited CVEs. Always verify against MikroTik's advisories — see our disclaimer.