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CVE-2022-23971

ASUS RT-AX56U - Path Traversal

HIGH

8.1

CVSS Score

Published: April 7, 2022 at 06:22 PM UTC

Updated: June 17, 2026 at 04:31 AM UTC

2 products affected across 1 vendorRt AX56U FirmwareRt-Ax56U

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Severity

HIGH8.1

Exploit prediction

EPSS 0.5%

Description

ASUS RT-AX56U’s update_PLC/PORT file has a path traversal vulnerability due to insufficient filtering for special characters in the URL parameter. An unauthenticated LAN attacker can overwrite a system file by uploading another PLC/PORT file with the same file name, which results in service disruption.

Affected

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

Rt AX56U Firmware · ASUS

95%

3.0.0.4.386.45898

asus-rt-ax56u (same device)

Rt-Ax56U · ASUSdevice

80%

All versions

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.

References (1)

x_refsource_MISCThird Party Advisory

Source: [email protected]

https://www.twcert.org.tw/tw/cp-132-5785-cf8db-1.html

CVSS

8.1HIGHtwcert

Attack Vector: ADJACENT_NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-22

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