CVE-2019-25591

DNSS Domain Name Search Software 2.1.8 Denial of Service

CVSS 6.9 MEDIUMEPSS 0.2%CWE-787

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.9EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

22 Mar 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected products

nsauditor · DNSS Domain Name Search Software

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References

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