ASUS RT-AX55 Routers OS Command Injection Vulnerability

ALTO 8.8EXPLOITED (CISA KEV)CVE-2023-39780 · Published 11/09/2023 · updated 17/06/2026

ASUS RT-AX55 Routers OS Command Injection Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 02/06/2025. Patch affected systems as an emergency.

Package	Affected versions	Patched versions
RT-AX55 Routers ASUS	Versions not published yet (product named by 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.

References

D2y6p/CVE · Exploit
D2y6p/CVE · Exploit
D2y6p/CVE · Exploit
D2y6p/CVE · Exploit
D2y6p/CVE · Exploit
D2y6p/CVE · Exploit
cisa.gov/known-exploited-vulnerabilities-catalog · US Government Resource
greynoise.io/blog/stealthy-backdoor-campaign-affecting-asus-routers · Exploit
CISA KEV · CVE-2023-39780

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Scan my site free