CVE-2023-39780 — ASUS RT-AX55 Routers OS Command Injection Vulnerability
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&q
Published
2023-09-11T00:00:00.000Z
Last modified
2025-10-21T23:05:39.058Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA KEV — Actively Exploited
01What is this vulnerability?
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…
02Affected products
| Vendor | Product | Versions |
|---|
| ASUS | RT | AX55 — 3.0.0.4.386.51598 |
03Active exploitation status
Yes — actively exploited. Added to the CISA KEV catalog on 2025-06-02. Ransomware use: Unknown.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:
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07Related CVEs
08Timeline
- Published: 2023-09-11T00:00:00.000Z
- Last modified: 2025-10-21T23:05:39.058Z
- Added to CISA KEV: 2025-06-02
- BOD 22-01 due: 2025-06-23
09References
- github.com — https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/1/EN.md
- github.com — https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/2/EN.md
- github.com — https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/3/EN.md
- github.com — https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/4/EN.md
- github.com — https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/5/EN.md
- github.com — https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/6/EN.md
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