# CVE-2023-39780

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.

- Page: https://www.vulneraibility.com/cve/CVE-2023-39780
- CVSS: 8.8
- Known exploited: yes, in CISA KEV since 2025-06-02; CISA due date 2025-06-23
- EPSS: 39.51%
- Unvetted proof-of-concept code on GitHub: 1 GitHub proof of concept (first 2026-10-30)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2025-06-06)
- Weakness: CWE-78
- Published: 2023-09-11

## Affected versions

- ASUS RT-AX55: affected 3.0.0.4.386.51598

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/1/EN.md
- [other] https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/2/EN.md
- [other] https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/3/EN.md
- [other] https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/4/EN.md
- [other] https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/5/EN.md
- [other] https://github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/6/EN.md
- [other] https://www.greynoise.io/blog/stealthy-backdoor-campaign-affecting-asus-routers
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-39780

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.