Advisory severityHigh8.7MikroTik

High [CVE-2026-67281] Unauthenticated file read in Mikrotik RouterOS

This high-severity MikroTik advisory covers CVE-2026-67281 affecting MikroTik RouterOS.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-67281 Source published Sep 6, 2026Source updated Sep 6, 2026

VulniPulse record published Oct 8, 2026

CVE-2026-67281

Affected products & platforms

MikroTikRouterOS

Open source advisory

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Summary

MikroTik has found a security vulnerability in RouterOS and releases containing a fix have been published in all channels. This is an important security update.

Most configurations are not at risk, but upgrading is highly recommended. Update 2026-10-06: this article now lists all six issues from the original report, including a corrected fix version for one of them (see below).

The CVE numbers were initially withheld to give users time to upgrade. Your device should already give you the option to upgrade software in the “Check for updates” menu.

Fix is included in: 7.25 beta 3. 7.24.2.

7.23.4. 6.49.21.

Important: the fix for one of the issues (CVE-2026-67278, forged certificates and SSH host keys) in 7.24.2 and 7.23.4 was found to be incomplete. The complete fix is included in 7.24.3 (stable) and 7.23.6 (long-term).

If you already upgraded in September, please upgrade again to one of these versions or any later release. RouterOS 6 is not affected by this particular issue.

For regular home device users the issue does not pose an immediate risk, but we still suggest all users to upgrade.

Affected product named by the advisory: MikroTik RouterOS.

Affected versions

RouterOS 7.24 before 7.24.2
RouterOS 7.0.0 before 7.23.4
RouterOS 6.0.0 before 6.49.21

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

Fixed versions

7.24.2
7.23.4
6.49.21

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

Mitigation

Upgrade to a fixed release: 7.24.2, 7.23.4, 6.49.21. That is the remediation for this advisory.

The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Official vendor advisoryofficial
Official advisory article fetched and its advisory identity was verified before publication. identity-sha256=8cc6d44f398d06522914dbc11b1d93d474d3f2f34ebbb13022fd26bd5b55c1bc
MikroTik
CVE.org CNA affected-product recordCVE.org
Structured CNA affected[] data independently confirmed the affected product scope; native advisory content remains authoritative.
CVE Program
NVD discovery recordNVD
Independent discovery and scoring cross-reference. Vendor remediation guidance takes precedence. Discovered from the machine-readable feed https://services.nvd.nist.gov/rest/json/cves/2.0; this link opens the NVD record for CVE-2026-67281 instead of the raw feed document.
NIST National Vulnerability Database

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-67281NVD CVE.org MITRE

Discussion(0)

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