CVE-2025-4496

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-4496
A vulnerability was found in TOTOLINK T10, A3100R, A950RG, A800R, N600R, A3000RU and A810R 4.1.8cu.5241_B20210927. It has been declared as critical. This vulnerability affects the function CloudACMunualUpdate of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument FileName leads to buffer overflow. The attack can be initiated 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://github.com/CH13hh/tmp_store_cc/blob/main/tt/ta/1.md Broken Link
https://vuldb.com/?ctiid.308212 VDB Entry Permissions Required
https://vuldb.com/?id.308212 VDB Entry Third Party Advisory
https://vuldb.com/?submit.567081 Third Party Advisory VDB Entry
https://www.totolink.net/ Product
https://github.com/CH13hh/tmp_store_cc/blob/main/tt/ta/1.md Broken Link
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:totolink:a3000ru_firmware:4.1.8cu.5241_b20210927:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a3000ru:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:totolink:a810r_firmware:4.1.8cu.5241_b20210927:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a810r:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND
cpe:2.3:o:totolink:t10_firmware:4.1.8cu.5241_b20210927:*:*:*:*:*:*:*
cpe:2.3:h:totolink:t10:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
cpe:2.3:o:totolink:a3100r_firmware:4.1.8cu.5241_b20210927:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a3100r:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:o:totolink:a950rg_firmware:4.1.8cu.5241_b20210927:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a950rg:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
cpe:2.3:o:totolink:a800r_firmware:4.1.8cu.5241_b20210927:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a800r:-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND
cpe:2.3:o:totolink:n600r_firmware:4.1.8cu.5241_b20210927:*:*:*:*:*:*:*
cpe:2.3:h:totolink:n600r:-:*:*:*:*:*:*:*
History

29 Jul 2025, 14:42

Type Values Removed Values Added
First Time Totolink a810r Firmware
Totolink a3100r Firmware
Totolink a3000ru Firmware
Totolink a950rg Firmware
Totolink n600r Firmware
Totolink t10 Firmware
Totolink a950rg
Totolink a3000ru
Totolink a810r
Totolink t10
Totolink
Totolink a800r
Totolink a3100r
Totolink a800r Firmware
Totolink n600r
References () https://github.com/CH13hh/tmp_store_cc/blob/main/tt/ta/1.md - () https://github.com/CH13hh/tmp_store_cc/blob/main/tt/ta/1.md - Broken Link
References () https://vuldb.com/?ctiid.308212 - () https://vuldb.com/?ctiid.308212 - VDB Entry, Permissions Required
References () https://vuldb.com/?id.308212 - () https://vuldb.com/?id.308212 - VDB Entry, Third Party Advisory
References () https://vuldb.com/?submit.567081 - () https://vuldb.com/?submit.567081 - Third Party Advisory, VDB Entry
References () https://www.totolink.net/ - () https://www.totolink.net/ - Product
CPE cpe:2.3:h:totolink:a3100r:-:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a800r_firmware:4.1.8cu.5241_b20210927:*:*:*:*:*:*:*
cpe:2.3:h:totolink:n600r:-:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a800r:-:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a3000ru_firmware:4.1.8cu.5241_b20210927:*:*:*:*:*:*:*
cpe:2.3:o:totolink:t10_firmware:4.1.8cu.5241_b20210927:*:*:*:*:*:*:*
cpe:2.3:h:totolink:t10:-:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a3100r_firmware:4.1.8cu.5241_b20210927:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a950rg_firmware:4.1.8cu.5241_b20210927:*:*:*:*:*:*:*
cpe:2.3:o:totolink:n600r_firmware:4.1.8cu.5241_b20210927:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a810r_firmware:4.1.8cu.5241_b20210927:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a950rg:-:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a810r:-:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a3000ru:-:*:*:*:*:*:*:*

12 May 2025, 20:15

Type Values Removed Values Added
References () https://github.com/CH13hh/tmp_store_cc/blob/main/tt/ta/1.md - () https://github.com/CH13hh/tmp_store_cc/blob/main/tt/ta/1.md -

12 May 2025, 17:32

Type Values Removed Values Added
Summary
  • (es) Se encontró una vulnerabilidad en TOTOLINK T10, A3100R, A950RG, A800R, N600R, A3000RU y A810R 4.1.8cu.5241_B20210927. Se ha declarado crítica. Esta vulnerabilidad afecta a la función CloudACMunualUpdate del archivo /cgi-bin/cstecgi.cgi. La manipulación del argumento FileName provoca un desbordamiento del búfer. El ataque puede ejecutarse en remoto. Se ha hecho público el exploit y puede que sea utilizado.

10 May 2025, 05:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-05-10 05:15

Updated : 2025-07-29 14:42

NVD link : CVE-2025-4496

Mitre link : CVE-2025-4496

CVE.ORG link : CVE-2025-4496

JSON object : View

Products Affected

totolink

  • t10_firmware
  • a950rg
  • a810r_firmware
  • n600r_firmware
  • t10
  • a810r
  • a3100r
  • a3000ru_firmware
  • a3000ru
  • n600r
  • a800r
  • a800r_firmware
  • a950rg_firmware
  • a3100r_firmware
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')