Vulnerability · Published Jan 16, 2026 · Assigned by VulnCheck
CVE-2021-47818DupTerminator 1.4.5639.37199 - Denial of Service
High 7.5
In plain English
A high-severity security flaw in DupTerminator from dupterminator. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 61.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| dupterminator | DupTerminator | 1.4.5639.37199 |
Weakness: CWE-1284 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- ExploitDB-49917 exploit
- DupTerminator Project Homepage product
- VulnCheck Advisory: DupTerminator 1.4.5639.37199 - Denial of Service third-party-advisory