CVE-2026-13385 remediation guide

ASUS Router

An Improper Validation of Integrity Check Value and Improper Certificate Validation in certain ASUS router models allows a remote man-in-the-middle(MITM) user to make the router download and execute arbitrary command via a spoofed server. Refer to the ' Security Update for ASUS Router Firmware ' section on the ASUS Security Advisory for more information.

Open CVE record

Research in progress

A verified fixed-version field is not available. Use the linked NVD and supporting references, then confirm the vendor-supported path before changing production systems.

ProductASUS Router

Affected versions>= 3.0.0.4_386 series, >= 3.0.0.4_388 series, >= 3.0.0.6_102 series

Fixed versionsNo verified fixed-version field is available yet

Priority basisReview · CVSS 9.5 · EPSS 0.14%

Identify the affected asset

Confirm whether ASUS Router is installed, record the deployed version and installation path, and identify exposed interfaces.

Record the product name, package or appliance identifier, and installed version.
Identify internet-facing, administrative, API, and internal access paths.
Preserve the pre-change configuration and relevant service logs.

Validate the affected-version match

Compare the deployed version with the affected range: >= 3.0.0.4_386 series, >= 3.0.0.4_388 series, >= 3.0.0.6_102 series. Treat incomplete inventory results as unresolved.

Prioritize with independent signals

The CVSS severity warrants an early asset and exposure review. Combine this signal with asset criticality, exposure, compensating controls, and business impact.

Apply supported remediation

Follow the vendor advisory or supported update path. Current fixed-version status: No verified fixed-version field is available yet. Preserve configuration and rollback material before change.

Verify the result

Confirm the resulting version, service health, authentication and access paths, monitoring coverage, and relevant security logs.

Confirm the expected version and package state.
Run a functional health check for critical service paths.
Review authentication, error, application, and security monitoring logs.
Reassess exposure if the supported fix cannot be applied.

Operational boundary

This page does not replace the vendor advisory, support contract, change-management process, or recovery plan. Do not infer that an asset is unaffected from an incomplete inventory query or a missing fixed-version field.