High 7.5Published Jan 16, 2026

CVE-2021-47818DupTerminator 1.4.5639.37199 - Denial of Service

Updated under an hour ago (Oct 27, 2026, 7:30 AM ET)

Does this affect you?

It affects DupTerminator. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for DupTerminator

Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-1284
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Feb 2, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

dupterminator DupTerminator dupterminator:dupterminator (from the name)	1.4.5639.37199	CNA record

References

References

https://www.exploit-db.com/exploits/49917	exploit
https://sourceforge.net/projects/dupterminator/	product
https://www.vulncheck.com/advisories/dupterminator-denial-of-service	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.