What is the CVSS score of CVE-2025-22903?

CVE-2025-22903 has a CVSS 3.1 base score of 4.6 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L. EPSS exploitation probability: 0.2%.

Which versions of N600r Firmware are affected by CVE-2025-22903?

Organizations using TOTOLINK N600R V4.3.0cu.7647_B20210106 should be aware of moderate risk from CVE-2025-22903, a stack-based buffer overflow vulnerability rated CVSS 4.6.

Is there a public PoC exploit available for CVE-2025-22903?

Yes, a public proof-of-concept exploit is available for CVE-2025-22903. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2025-22903?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

N600r Firmware CVE-2025-22903

MEDIUM

Stack-based Buffer Overflow (CWE-121)

2025-04-15 cve@mitre.org

Buffer Overflow Stack Overflow N600r Firmware TOTOLINK

4.6

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.6 MEDIUM

AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

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

MEDIUM 4.6

DescriptionCVE.org

TOTOLINK N600R V4.3.0cu.7647_B20210106 was discovered to contain a stack overflow via the pin parameter in the function setWiFiWpsConfig.

AnalysisAI

TOTOLINK N600R V4.3.0cu.7647_B20210106 was discovered to contain a stack overflow via the pin parameter in the function setWiFiWpsConfig. Rated medium severity (CVSS 4.6), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-121. TOTOLINK N600R V4.3.0cu.7647_B20210106 was discovered to contain a stack overflow via the pin parameter in the function setWiFiWpsConfig. Affected products include: Totolink N600R Firmware.

RemediationAI

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.