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CVE-2019-25591

DNSS Domain Name Search Software 2.1.8 Denial of Service

Published: Mar 22, 2026Updated: Apr 16, 2026 Sources: CVE List NVDCWE-787
NVD MITRE
6.2CVSSMEDIUM
EPSS Score
0.2%
Top 92.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-787

Affected Products

DNSS Domain Name Search Softwarensauditor
On-prem
Security Products / pki-crypto
nsauditorcommercialSecurity Products

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://www.exploit-db.com/exploits/46831
exploit-db.com
http://www.nsauditor.com/downloads/dnss_setup.exe
nsauditor.com
https://www.vulncheck.com/advisories/dnss-domain-name-search-software-denial-of-service
vulncheck.com

Timeline

Published
Mar 22, 2026
Last Updated
Apr 16, 2026

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