CVE-2025-22900

CRITICAL
2025-04-15 [email protected]
9.8
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 18:36 vuln.today
PoC Detected
Apr 22, 2025 - 16:55 vuln.today
Public exploit code
CVE Published
Apr 15, 2025 - 19:16 nvd
CRITICAL 9.8

Tags

Buffer Overflow Stack Overflow N600r Firmware TOTOLINK

Description

Totolink N600R v4.3.0cu.7647_B20210106 was discovered to contain a stack overflow via the macCloneMac parameter in the setWanConfig function.

Analysis

Totolink N600R v4.3.0cu.7647_B20210106 was discovered to contain a stack overflow via the macCloneMac parameter in the setWanConfig function. Rated critical severity (CVSS 9.8), 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 under CWE-121. Totolink N600R v4.3.0cu.7647_B20210106 was discovered to contain a stack overflow via the macCloneMac parameter in the setWanConfig function. 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. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

69
Low Medium High Critical
KEV: 0
EPSS: +0.4
CVSS: +49
POC: +20

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CVE-2025-22900 vulnerability details – vuln.today
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