CVE-2025-4849

TOTOLINK N300RH cstecgi.cgi CloudACMunualUpdateUserdata command injection

Severity Score

5.3

*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

NVD
MITRE

A vulnerability was found in TOTOLINK N300RH 6.1c.1390_B20191101. It has been rated as critical. Affected by this issue is the function CloudACMunualUpdateUserdata of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument url leads to command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Eine kritische Schwachstelle wurde in TOTOLINK N300RH 6.1c.1390_B20191101 ausgemacht. Davon betroffen ist die Funktion CloudACMunualUpdateUserdata der Datei /cgi-bin/cstecgi.cgi. Dank der Manipulation des Arguments url mit unbekannten Daten kann eine command injection-Schwachstelle ausgenutzt werden. Der Angriff kann über das Netzwerk erfolgen. Der Exploit steht zur öffentlichen Verfügung.

*Credits: DaddyShark

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

Low

User Interaction

None

System

Vulnerable | Subsequent

Confidentiality

Low

None

Integrity

Low

None

Availability

Low

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2025-05-16 CVE Reserved
2025-05-18 CVE Published
2025-05-19 CVE Updated
2025-05-19 First Exploit
2025-06-19 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

CAPEC

References (4)

URL	Tag	Source
https://vuldb.com/?id.309320	Technical Description
https://vuldb.com/?submit.575072	Third Party Advisory
https://www.totolink.net	Product

URL	Date	SRC
https://github.com/CH13hh/tmp_store_cc/blob/main/tt/ta/m1.md	2025-05-19

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Totolink Search vendor "Totolink"		N300rh Firmware Search vendor "Totolink" for product "N300rh Firmware"				*		-		Affected