Known Exploited Vulnerability: CVE-2023-39780

ASUS RT-AX55 Routers OS Command Injection Vulnerability

Catalog version: 2026.07.23 Date added: 2025-06-02 Due date: 2025-06-23 CISA catalog

Vendor: ASUS

Product: RT-AX55 Routers

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Known ransomware campaign use: Unknown

Notes: https://www.asus.com/networking-iot-servers/wifi-6/all-series/rt-ax55/helpdesk_bios/?model2Name=RT-AX55 https://www.asus.com/content/asus-product-security-advisory/ https://nvd.nist.gov/vuln/detail/CVE-2023-39780

CWEs

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