SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2023-39238

It is identified a format string vulnerability in ASUS RT-AX56U V2.

HIGH 7.2EPSS 1.36%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

It is identified a format string vulnerability in ASUS RT-AX56U V2. This vulnerability is caused by lacking validation for a specific value within its set_iperf3_svr.cgi module. A remote attacker with administrator privilege can exploit this vulnerability to perform remote arbitrary code execution, arbitrary system operation or disrupt service.

CVSS 3.1
7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
1.36% probability · 70th percentile
CISA KEV
Not listed
Weakness
CWE-134
Affected
asus/rt-ax55 firmware · asus/rt-ax56u v2 firmware · asus/rt-ac86u firmware
Source
twcert@cert.org.tw

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.