# CVE-2023-35086

## Summary

- **CVE ID:** CVE-2023-35086
- **Severity:** HIGH
- **CVSS Score:** 7.2 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-134
- **Published:** Jul 21, 2023
- **Last Modified:** Mar 13, 2026

## Description

It is identified a format string vulnerability in ASUS RT-AX56U V2 & RT-AC86U. This vulnerability is caused by directly using input as a format string when calling syslog in logmessage_normal function, in the do_detwan_cgi module of httpd. A remote attacker with administrator privilege can exploit this vulnerability to perform remote arbitrary code execution, arbitrary system operation or disrupt service.

This issue affects RT-AX56U V2: 3.0.0.4.386_50460; RT-AC86U: 3.0.0.4_386_51529.

## Affected Products

- ASUS — RT-AX56U V2 (3.0.0.4.386_50460)
- ASUS — RT-AC86U (3.0.0.4_386_51529)

## References

- [CNA](https://www.twcert.org.tw/tw/cp-132-7240-a5f96-1.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 75.07%
- **EPSS Percentile:** 98.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._