Vulnerability · Published Feb 11, 2026 · Assigned by VulnCheck
CVE-2020-37196Dnss Domain Name Search Software - 'Key' Denial of Service
High 7.5
In plain English
A high-severity buffer overflow in Nsauditor Dnss Domain Name Search Software from Nsasoft. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 56.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Dnss Domain Name Search Software contains a denial of service vulnerability that allows attackers to crash the application by providing an oversized registration key. Attackers can generate a 1000-character buffer payload and paste it into the registration key field to trigger an application crash.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Nsasoft | Nsauditor Dnss Domain Name Search Software | - |
Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- ExploitDB-47856 exploit
- Vendor Homepage product
- VulnCheck Advisory: Dnss Domain Name Search Software - 'Key' Denial of Service third-party-advisory