CVE-2025-57623

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-57623
A NULL pointer dereference in TOTOLINK N600R firmware v4.3.0cu.7866_B2022506 allows attackers to cause a Denial of Service.

5.3 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://gist.github.com/z472421519/d17061ea79a72d39fe69c000fa1a6280 Exploit Third Party Advisory
https://github.com/z472421519/BinaryAudit/blob/main/PoC/NPD/TOTOLink/CONTENT_LENGTH.md Exploit
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:totolink:n600r_firmware:4.3.0cu.7866_b2022506:*:*:*:*:*:*:*
cpe:2.3:h:totolink:n600r:-:*:*:*:*:*:*:*
History

29 Sep 2025, 13:07

Type Values Removed Values Added
First Time Totolink n600r Firmware
Totolink n600r
Totolink
References () https://gist.github.com/z472421519/d17061ea79a72d39fe69c000fa1a6280 - () https://gist.github.com/z472421519/d17061ea79a72d39fe69c000fa1a6280 - Exploit, Third Party Advisory
References () https://github.com/z472421519/BinaryAudit/blob/main/PoC/NPD/TOTOLink/CONTENT_LENGTH.md - () https://github.com/z472421519/BinaryAudit/blob/main/PoC/NPD/TOTOLink/CONTENT_LENGTH.md - Exploit
CPE cpe:2.3:o:totolink:n600r_firmware:4.3.0cu.7866_b2022506:*:*:*:*:*:*:*
cpe:2.3:h:totolink:n600r:-:*:*:*:*:*:*:*

26 Sep 2025, 20:15

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.3
CWE CWE-476

25 Sep 2025, 18:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-09-25 18:15

Updated : 2025-09-29 13:07

NVD link : CVE-2025-57623

Mitre link : CVE-2025-57623

CVE.ORG link : CVE-2025-57623

JSON object : View

Products Affected

totolink

  • n600r
  • n600r_firmware
CWE
CWE-476

NULL Pointer Dereference