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CVE-2023-39780

8.8
HIGHCVSS v3.1 Base Score
41.09%
MEDIUM RiskEPSS (97th percentile)
KEV

On ASUS RT-AX55 3.0.0.4.386.51598 devices, authenticated attackers can perform OS command injection via the /start_apply.htm qos_bw_rulelist parameter. NOTE: for the similar "token-generated module" issue, see CVE-2023-41345; for the similar "token-refresh module" issue, see CVE-2023-41346; for the similar "check token module" issue, see CVE-2023-41347; and for the similar "code-authentication module" issue, see CVE-2023-41348.

Published: 9/11/2023
Modified: 10/31/2025
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ACTIVELY EXPLOITED IN THE WILD

This vulnerability is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability Name:

ASUS RT-AX55 Routers OS Command Injection Vulnerability

Vendor / Product:

ASUS 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.

Due Date: 6/23/2025(OVERDUE)
Added to KEV:

6/2/2025

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

Vulnerability Summary

CVSS v3 Score

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score (Exploitation Probability)

41.09%MEDIUM Exploitation Risk
97th percentile

This vulnerability has a 41.09% probability of being exploited in the next 30 days, ranking higher than 97% of all scored CVEs.

CWE Classification

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Similar SeverityHIGH