CVE-2025-70327
TOTOLINK X5000R Argument Injection Vulnerability
Description
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.
INFO
Published Date :
Feb. 23, 2026, 9:19 p.m.
Last Modified :
Feb. 26, 2026, 3:06 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Validate the ip parameter to prevent hyphens.
- Sanitize all user inputs for the ping command.
- Apply vendor patches when available.
- Restrict access to the diagnostic function.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-70327.
| URL | 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 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-70327 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-70327
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-70327 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-70327 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Feb. 26, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-88 Added CPE Configuration AND OR *cpe:2.3:o:totolink:x5000r_firmware:9.1.0cu.2415_b20250515:*:*:*:*:*:*:* OR cpe:2.3:h:totolink:x5000r:-:*:*:*:*:*:*:* Added Reference Type MITRE: https://github.com/neighborhood-H/0-DAY/blob/main/Toto-link/X5000R/SetDiagnosisCfg/report.md Types: Exploit, Third Party Advisory Added Reference Type MITRE: https://www.notion.so/TOTOLINK-X5000R-SetDiagnosisCfg-2d170566ca7f8098a0bcee9f2a15d40d?source=copy_link Types: Exploit, Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 25, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-400 -
New CVE Received by [email protected]
Feb. 23, 2026
Action Type Old Value New Value Added Description 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. Added Reference https://github.com/neighborhood-H/0-DAY/blob/main/Toto-link/X5000R/SetDiagnosisCfg/report.md Added Reference https://www.notion.so/TOTOLINK-X5000R-SetDiagnosisCfg-2d170566ca7f8098a0bcee9f2a15d40d?source=copy_link