Is RouterOS 6.42.12 patched?
Current stable (7.25): 97/100
6.42.12 has 18 open critical-or-high vulnerabilities. Run 7.23.6 or later to clear them. See what 7.23.6 fixes →
Upgrade impact: Major upgrade. Crossing a major version usually means breaking changes. Review the vendor’s upgrade / migration guide and test before you roll it out.
Summary iPlain-English security status for RouterOS 6.42.12, built from its CVEs, active-exploitation data, end-of-life date and latest release.
RouterOS 6.42.12 is part of the 6.42 release line. 3 actively-exploited vulnerabilities affect it (CISA KEV). The minimum safe version is 7.23.6 — upgrade to it or later to clear the open critical/high issues. The latest supported RouterOS release is 7.25.
Known issues affecting 6.42.12
Exploited first, then by exploitation probability.
CVE-2026-86060 CRITICAL exploited EPSS 6% → fixed in 7.24.2 CVE-2026-67279 MEDIUM exploited EPSS 2% → fixed in 7.24.2 CVE-2026-67277 HIGH exploited EPSS 2% → fixed in 7.24.2 CVE-2019-3924 HIGH EPSS 16% → fixed in 6.43.12 CVE-2019-3978 HIGH EPSS 10% → see advisory CVE-2019-13954 MEDIUM EPSS 4% → fixed in 6.44.5 CVE-2020-11881 HIGH EPSS 4% → see advisory CVE-2019-13955 MEDIUM EPSS 4% → fixed in 6.44.5 CVE-2019-3943 HIGH EPSS 4% → see advisory CVE-2020-20221 MEDIUM EPSS 3% → fixed in 6.44.6 CVE-2020-20220 MEDIUM EPSS 3% → fixed in 6.47 CVE-2020-10364 HIGH EPSS 3% → see advisory CVE-2019-16160 HIGH EPSS 3% → fixed in 6.45.5 CVE-2019-15055 MEDIUM EPSS 2% → see advisory CVE-2020-20262 MEDIUM EPSS 2% → fixed in 6.47 CVE-2020-20265 MEDIUM EPSS 2% → fixed in 6.47 CVE-2020-20253 MEDIUM EPSS 2% → fixed in 6.47 CVE-2020-20254 MEDIUM EPSS 2% → fixed in 6.47 CVE-2020-20264 MEDIUM EPSS 2% → fixed in 6.47 CVE-2020-20266 MEDIUM EPSS 2% → fixed in 6.47Other RouterOS versions
Check another release line of RouterOS.
Frequently asked
Is RouterOS 6.42.12 patched?
No — 3 actively-exploited vulnerabilities affect RouterOS 6.42.12. Upgrade to at least 7.23.6.
What version should I upgrade RouterOS 6.42.12 to?
Upgrade RouterOS 6.42.12 to at least 7.23.6 to clear its 18 open critical-or-high vulnerabilities.
What is the latest version of RouterOS?
The latest supported RouterOS release is 7.25.
Is RouterOS 6.42.12 still receiving security updates?
No — RouterOS 6.42.12 is on the 6.42 line, which reached end-of-life and no longer receives security updates. Upgrade to 7.25 or later to stay supported.
Informational only, from public data (NVD · CISA KEV · EPSS · endoflife.date), and can lag or miss vendor-specific fixes. Always confirm against MikroTik's official advisory before you patch or upgrade.