CVE-2023-39780

HighActively exploited (CISA KEV)

Description

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.

SeverityHigh

CVSS8.8

Exploit probability—

ProductASUS RT-AX55 Routers

PublishedSep 11, 2023

First seenSep 11, 2023

Added to KEVJun 2, 2025

Weakness typeCWE-78OS command injection

How to fix

CISA 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.

CISA due date: Jun 23, 2025

Affected products

Product	Affected versions	Fixed in
asus rt-ax55_firmware	3.0.0.4.386.51598	—

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