CVE-2023-35086: ASUS RT-AX56U V2 & RT-AC86U - Format String -1

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 38.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-07-21 · updated 2026-06-17
Weakness: CWE-134

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-AC86U: 3.0.0.4_386_51529
ASUS Rt-Ax56U V2 Firmware: 3.0.0.4.386_50460

References

Get alerted when CVE-2023-35086 or the next vulnerability affects your stack