CVEs / CVE-2023-39780
CVE-2023-39780: ASUS RT-AX55 Routers OS Command Injection Vulnerability
- Known exploited in the CISA KEV catalog since 2 Jun 2025
- high 8.8 CVSS 3.1 (NVD)
- EPSS 39.5% chance of exploitation in the next 30 days, higher than 98% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
ASUS RT-AX55 devices contain an OS command injection vulnerability that could allow a remote, authenticated attacker to execute arbitrary commands. As represented by CVE-2023-41346.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| ASUS RT-AX55 | 3.0.0.4.386.51598 | — |
| asus rt-ax55 | 3.0.0.4.386.51598 | — |
Exploitation
| In CISA KEV since | 2 Jun 2025 |
|---|---|
| Due date for US federal agencies | 23 Jun 2025 |
| Used in ransomware campaigns | Unknown |
| 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. |
Severity
| CVSS 3.1 | 8.8 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-78 |
References
- CVE-2023-39780 on NVD
- CVE-2023-39780 in the CISA KEV catalog
- https://www.asus.com/networking-iot-servers/wifi-6/all-series/rt-ax55/helpdesk_bios/?model2Name=RT-AX55 (cited by CISA)
- https://www.asus.com/content/asus-product-security-advisory/ (cited by CISA)
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/1/EN.md Exploit, Third Party Advisory
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/2/EN.md Exploit, Third Party Advisory
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/3/EN.md Exploit, Third Party Advisory
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/4/EN.md Exploit, Third Party Advisory
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/5/EN.md Exploit, Third Party Advisory
- https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/6/EN.md Exploit, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-39780 US Government Resource
- https://www.greynoise.io/blog/stealthy-backdoor-campaign-affecting-asus-routers Exploit, Third Party Advisory
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.