What is the CVSS score of CVE-2020-36971?

CVE-2020-36971 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-2020-36971?

Yes, a public proof-of-concept exploit is available for CVE-2020-36971. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2020-36971?

Within 24 hours: Inventory all systems running Nidesoft 3GP Video Converter 2.6.18 and restrict user access to the application. Within 7 days: Uninstall the affected version from all endpoints or disable the license registration feature through group policy if possible; evaluate business necessity for this tool. Within 30 days: Replace with alternative video conversion software or migrate to a patched version if released by the vendor; implement application whitelisting to prevent execution of non-approved converters.

CVE-2020-36971

HIGH

Stack-based Buffer Overflow (CWE-121)

2026-01-28 disclosure@vulncheck.com

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 - 21:54 vuln.today

PoC Detected

Jan 29, 2026 - 16:31 vuln.today

Public exploit code

CVE Published

Jan 28, 2026 - 18:16 nvd

HIGH 8.4

DescriptionCVE.org

Nidesoft 3GP Video Converter 2.6.18 contains a local stack buffer overflow vulnerability in the license registration parameter. Attackers can craft a malicious payload and paste it into the 'License Code' field to execute arbitrary code on the system.

AnalysisAI

Technical ContextAI

Classified as CWE-121 (Stack-based Buffer Overflow). Nidesoft 3GP Video Converter 2.6.18 contains a local stack buffer overflow vulnerability in the license registration parameter. Attackers can craft a malicious payload and paste it into the 'License Code' field to execute arbitrary code on the system.

Affected ProductsAI

Component: license registration.

RemediationAI

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

CVE-2020-36971 vulnerability details – vuln.today

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CVE-2020-36971

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

Affected ProductsAI

RemediationAI

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External POC / Exploit Code