CVE-2025-70327

TOTOLINK X5000R v9.1.0cu_2415_B20250515 contains an argument injection vulnerability in the setDiagnosisCfg handler of the /usr/sbin/lighttpd executable. The ip parameter is retrieved via websGetVar and passed to a ping command through CsteSystem without validating if the input starts with a hyphen (-). This allows remote authenticated attackers to inject arbitrary command-line options into the ping utility, potentially leading to a Denial of Service (DoS) by causing excessive resource consumption or prolonged execution.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/neighborhood-H/0-DAY/blob/main/Toto-link/X5000R/SetDiagnosisCfg/report.md	Exploit Third Party Advisory
https://www.notion.so/TOTOLINK-X5000R-SetDiagnosisCfg-2d170566ca7f8098a0bcee9f2a15d40d?source=copy_link	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:totolink:x5000r_firmware:9.1.0cu.2415_b20250515:*:*:*:*:*:*:*

cpe:2.3:h:totolink:x5000r:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-23 21:19

Updated : 2026-02-26 03:06

NVD link : CVE-2025-70327

Mitre link : CVE-2025-70327

CVE.ORG link : CVE-2025-70327

JSON object : View

Products Affected

totolink

x5000r
x5000r_firmware

CWE

CWE-88

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

CWE-400

Uncontrolled Resource Consumption

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