CVE-2025-57623: Null Pointer Dereference
Published Sep 25, 2025
·Updated
A NULL pointer dereference in TOTOLINK N600R firmware v4.3.0cu.7866B2022506 allows attackers to cause a Denial of Service.
Affected Software
3 affected components
TOTOLINK N600R firmware
All of the following
TOTOLINK N600R firmware=4.3.0cu.7866_b2022506
TOTOLINK N600R
Event History
Sep 25, 2025
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·06:15 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2025-57623?
CVE-2025-57623 is classified as a high-severity vulnerability due to its potential to cause Denial of Service.
2
How do I fix CVE-2025-57623?
To mitigate CVE-2025-57623, it is recommended to update the TOTOLINK N600R firmware to the latest version released by the vendor.
3
What causes CVE-2025-57623?
CVE-2025-57623 is caused by a NULL pointer dereference vulnerability in the TOTOLINK N600R firmware.
4
What systems are affected by CVE-2025-57623?
CVE-2025-57623 specifically affects the TOTOLINK N600R firmware version 4.3.0cu.7866_B2022506.
5
What are the potential impacts of CVE-2025-57623?
The potential impact of CVE-2025-57623 includes Denial of Service, leading to disruption of normal operation for users.