CVE-2020-37198

HIGH

Duplicate Cleaner Pro 4.1.3 - Denial of Service via License Key Field Buffer Overflow

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-37198. PoCs published by stresser.

AI-analyzed exploit summary This exploit generates a large buffer of 'A' characters (6000 bytes) and writes it to a file named 'Evil.txt'. When this content is pasted into the 'License key' field of Duplicate Cleaner Pro 4.1.3 and the 'Activate' button is clicked, it triggers a denial of service (DoS) due to a buffer overflow.

Description

Duplicate Cleaner Pro 4.1.3 contains a denial of service vulnerability that allows attackers to crash the application by injecting an oversized buffer into the license key field. Attackers can generate a 6000-byte payload and paste it into the license activation field to trigger an application crash.

Exploits (1)

exploitdb WORKING POC VERIFIED
by stresser · pythondoswindows
https://www.exploit-db.com/exploits/47873

This exploit generates a large buffer of 'A' characters (6000 bytes) and writes it to a file named 'Evil.txt'. When this content is pasted into the 'License key' field of Duplicate Cleaner Pro 4.1.3 and the 'Activate' button is clicked, it triggers a denial of service (DoS) due to a buffer overflow.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Duplicate Cleaner Pro 4.1.3
No auth needed
Prerequisites: Python to generate the payload · Duplicate Cleaner Pro 4.1.3 installed on Windows
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/47873

Scores

CVSS v3 7.5
EPSS 0.0039
EPSS Percentile 31.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-121
Status published
Products (1)
DigitalVolcano Software/Duplicate Cleaner Pro 4
Published Feb 11, 2026
Tracked Since Feb 18, 2026