What is the CVSS score of CVE-2020-37025?

CVE-2020-37025 has a CVSS 3.1 base score of 8.4 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Is there a public PoC exploit available for CVE-2020-37025?

Yes, a public proof-of-concept exploit is available for CVE-2020-37025. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2020-37025?

Within 24 hours: Inventory all systems running Port Forwarding Wizard 4.8.0 and restrict access to the Register feature via network segmentation or firewall rules. Within 7 days: Disable the Register feature if operationally feasible, or implement strict input validation and monitoring on vulnerable endpoints. Within 30 days: Evaluate vendor patch availability, migrate to a patched version, or consider alternative software solutions.

Windows CVE-2020-37025

Q: Which versions of Windows are affected by CVE-2020-37025?

Port Forwarding Wizard 4.8.0 contains a critical buffer overflow vulnerability that allows local attackers to execute arbitrary code with no available patch.

HIGH

Classic Buffer Overflow (CWE-120)

2026-01-30 disclosure@vulncheck.com

Windows Buffer Overflow

8.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.4 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:00 vuln.today

PoC Detected

Feb 04, 2026 - 16:34 vuln.today

Public exploit code

CVE Published

Jan 30, 2026 - 23:16 nvd

HIGH 8.4

DescriptionCVE.org

Port Forwarding Wizard 4.8.0 contains a buffer overflow vulnerability that allows local attackers to execute arbitrary code through a long request in the Register feature. Attackers can craft a malicious payload with an egg tag and overwrite SEH handlers to potentially execute shellcode on vulnerable Windows systems.

AnalysisAI

Port Forwarding Wizard 4.8.0 contains a buffer overflow vulnerability that allows local attackers to execute arbitrary code through a long request in the Register feature. [CVSS 8.4 HIGH]

Technical ContextAI

Classified as CWE-120 (Classic Buffer Overflow). Port Forwarding Wizard 4.8.0 contains a buffer overflow vulnerability that allows local attackers to execute arbitrary code through a long request in the Register feature. Attackers can craft a malicious payload with an egg tag and overwrite SEH handlers to potentially execute shellcode on vulnerable Windows systems.

Affected ProductsAI

Port Forwarding Wizard 4.8.0 contains a buffer overflow vulnerability that allows local attackers to execute arbitrary code through a long request in

RemediationAI

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible.

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CVE-2020-37025 vulnerability details – vuln.today

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Windows CVE-2020-37025

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

Affected ProductsAI

RemediationAI

More from same product – last 7 days

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External POC / Exploit Code