CVE-2025-57623

MEDIUM
2025-09-25 [email protected]
5.3
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 19:14 vuln.today
PoC Detected
Sep 29, 2025 - 13:07 vuln.today
Public exploit code
CVE Published
Sep 25, 2025 - 18:15 nvd
MEDIUM 5.3

Tags

Denial Of Service Null Pointer Dereference N600r Firmware TOTOLINK

Description

A NULL pointer dereference in TOTOLINK N600R firmware v4.3.0cu.7866_B2022506 allows attackers to cause a Denial of Service.

Analysis

A NULL pointer dereference in TOTOLINK N600R firmware v4.3.0cu.7866_B2022506 allows attackers to cause a Denial of Service. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical Context

This vulnerability is classified as NULL Pointer Dereference (CWE-476), which allows attackers to crash the application by dereferencing a null pointer. A NULL pointer dereference in TOTOLINK N600R firmware v4.3.0cu.7866_B2022506 allows attackers to cause a Denial of Service. Affected products include: Totolink N600R Firmware.

Affected Products

Totolink N600R Firmware.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Check pointers before dereferencing. Use static analysis tools to detect null pointer paths.

Priority Score

47
Low Medium High Critical
KEV: 0
EPSS: +0.4
CVSS: +26
POC: +20

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CVE-2025-57623 vulnerability details – vuln.today
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