CVE-2025-6302

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-6302
A vulnerability, which was classified as critical, was found in TOTOLINK EX1200T 4.1.2cu.5232_B20210713. Affected is the function setStaticDhcpConfig of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument Comment leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

8.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References
Link Resource
https://kn0sinna.notion.site/TOTOLINK-EX1200T-stack-based-BufferOverflow-vulnerability-20fb1876cd6e80d5b4d1f7ec16de4ec2 Exploit
https://vuldb.com/?ctiid.313302 Permissions Required VDB Entry
https://vuldb.com/?id.313302 Third Party Advisory VDB Entry
https://vuldb.com/?submit.595473 Third Party Advisory VDB Entry
https://www.totolink.net/ Product
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:totolink:ex1200t_firmware:4.1.2cu.5232_b20210713:*:*:*:*:*:*:*
cpe:2.3:h:totolink:ex1200t:-:*:*:*:*:*:*:*
History

02 Jul 2025, 17:40

Type Values Removed Values Added
References () https://kn0sinna.notion.site/TOTOLINK-EX1200T-stack-based-BufferOverflow-vulnerability-20fb1876cd6e80d5b4d1f7ec16de4ec2 - () https://kn0sinna.notion.site/TOTOLINK-EX1200T-stack-based-BufferOverflow-vulnerability-20fb1876cd6e80d5b4d1f7ec16de4ec2 - Exploit
References () https://vuldb.com/?ctiid.313302 - () https://vuldb.com/?ctiid.313302 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.313302 - () https://vuldb.com/?id.313302 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.595473 - () https://vuldb.com/?submit.595473 - Third Party Advisory, VDB Entry
References () https://www.totolink.net/ - () https://www.totolink.net/ - Product
CPE cpe:2.3:o:totolink:ex1200t_firmware:4.1.2cu.5232_b20210713:*:*:*:*:*:*:*
cpe:2.3:h:totolink:ex1200t:-:*:*:*:*:*:*:*
First Time Totolink
Totolink ex1200t Firmware
Totolink ex1200t

23 Jun 2025, 20:16

Type Values Removed Values Added
Summary
  • (es) Se encontró una vulnerabilidad clasificada como crítica en TOTOLINK EX1200T 4.1.2cu.5232_B20210713. La función setStaticDhcpConfig del archivo /cgi-bin/cstecgi.cgi está afectada. La manipulación del argumento "Comment" provoca un desbordamiento del búfer en la pila. Es posible ejecutar el ataque de forma remota. Se ha hecho público el exploit y puede que sea utilizado.

20 Jun 2025, 03:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-06-20 03:15

Updated : 2025-07-02 17:40

NVD link : CVE-2025-6302

Mitre link : CVE-2025-6302

CVE.ORG link : CVE-2025-6302

JSON object : View

Products Affected

totolink

  • ex1200t
  • ex1200t_firmware
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-121

Stack-based Buffer Overflow