Which versions of Ex6200 Firmware are affected by CVE-2025-4142?

Organizations using A vulnerability face significant risk from CVE-2025-4142, a buffer overflow vulnerability rated CVSS 8.7.

Is there a public PoC exploit available for CVE-2025-4142?

Yes, a public proof-of-concept exploit is available for CVE-2025-4142. Prioritise patching immediately. EPSS: 1.2%.

How to fix or mitigate CVE-2025-4142?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

Ex6200 Firmware CVE-2025-4142

Q: What is the CVSS score of CVE-2025-4142?

CVE-2025-4142 has a CVSS 4.0 base score of 8.7 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 1.2%.

HIGH

Buffer Overflow (CWE-119)

2025-04-30 cna@vuldb.com

Netgear Buffer Overflow Ex6200 Firmware

8.7

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

8.7 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:39 vuln.today

PoC Detected

May 12, 2025 - 19:39 vuln.today

Public exploit code

CVE Published

Apr 30, 2025 - 23:16 nvd

HIGH 8.7

DescriptionCVE.org

A vulnerability has been found in Netgear EX6200 1.0.3.94 and classified as critical. This vulnerability affects the function sub_3C8EC. The manipulation of the argument host leads to buffer overflow. The attack can be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

A vulnerability has been found in Netgear EX6200 1.0.3.94 and classified as critical. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. A vulnerability has been found in Netgear EX6200 1.0.3.94 and classified as critical. This vulnerability affects the function sub_3C8EC. The manipulation of the argument host leads to buffer overflow. The attack can be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way. Affected products include: Netgear Ex6200 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.

CVE-2025-4142 vulnerability details – vuln.today

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