CVE-2021-47818

HIGH

DupTerminator <1.4.5639.37199 - DoS

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-47818. PoCs published by Brian Rodriguez.

AI-analyzed exploit summary This exploit demonstrates a Denial of Service (DoS) vulnerability in DupTerminator 1.4.5639.37199 by writing a large buffer of 'A' characters to a file, which when used in the 'Excluded' field causes the application to crash.

Description

DupTerminator 1.4.5639.37199 contains a denial of service vulnerability that allows attackers to crash the application by inputting a long character string in the Excluded text box. Attackers can generate a payload of 8000 repeated characters to trigger the application to stop working on Windows 10.

Exploits (1)

exploitdb WORKING POC
by Brian Rodriguez · pythondoswindows
https://www.exploit-db.com/exploits/49917

This exploit demonstrates a Denial of Service (DoS) vulnerability in DupTerminator 1.4.5639.37199 by writing a large buffer of 'A' characters to a file, which when used in the 'Excluded' field causes the application to crash.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: DupTerminator 1.4.5639.37199
No auth needed
Prerequisites: Access to the DupTerminator application interface
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/49917

Scores

CVSS v3 7.5
EPSS 0.0039
EPSS Percentile 31.0%
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-1284
Status published
Published Jan 16, 2026
Tracked Since Feb 18, 2026