CVE-2023-39780 KEV
8.8
HIGH · CVSS 3.1 · EPSS 40.2% (pctl 99)
Patch first
On CISA KEV — known exploited in the wild, due 2025-06-23.
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.
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 40.19% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-78 |
| On CISA KEV | yes — remediate by 2025-06-23 |
| Public exploit | none known |
| Published | 2023-09-11 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | ASUS RT-AX55 Routers OS Command Injection Vulnerability |
|---|---|
| Added | 2025-06-02 |
| Due | 2025-06-23 |
| Vendor / product | ASUS / RT-AX55 Routers |
| Ransomware use | none reported |
Affected (2)
| Vendor | Product |
|---|---|
| asus | rt-ax55 |
| asus | rt-ax55 firmware |
References
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/1/EN.md
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/2/EN.md
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/3/EN.md
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/4/EN.md
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/5/EN.md
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/6/EN.md
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/1/EN.md
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/2/EN.md
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/3/EN.md
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/4/EN.md
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/5/EN.md
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/6/EN.md
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-39780
- https://www.greynoise.io/blog/stealthy-backdoor-campaign-affecting-asus-routers
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