CVE-2023-39239

ASUS RT-AX55、RT-AX56U_V2、RT-AC86U - Format String - 2

HIGH
7.2
CVSS Score
Published: September 7, 2023 at 07:18 AM UTC
Updated: June 17, 2026 at 06:11 AM UTC
6 products affected across 1 vendorRt AC86U FirmwareRt AX55 FirmwareRt AX56U V2 Firmware

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Severity
HIGH7.2
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.2HIGHtwcert
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-134

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