Buffer overflow in Nsauditor Dnss Domain Name Search Software
CVE-2019-25591
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (6.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Nsauditor Dnss Domain Name Search Software — versions 2.1.8
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/46831 (exploit)
- www.nsauditor.com/downloads/dnss_setup.exe (product)
- www.vulncheck.com/advisories/dnss-domain-name-search-software-denial-of-service (third-party-advisory)
Frequently asked questions
- What is CVE-2019-25591?
- CVE-2019-25591 is a medium-severity vulnerability in Nsauditor Dnss Domain Name Search Software, classified under Out-of-bounds Write. CVSS score: 6.2/10. Published 2026-03-22.
- How severe is CVE-2019-25591?
- Medium severity. CVSS v3 base score is 6.2 out of 10.