Vulnerability · Published Feb 11, 2026 · Assigned by VulnCheck
CVE-2020-37202NetworkSleuth 3.0.0.0 - 'Key' Denial of Service
High 7.5
In plain English
A high-severity buffer overflow in Nsauditor NetworkSleuth from Nsasoft. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 68.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
NetworkSleuth 3.0.0.0 contains a denial of service vulnerability that allows attackers to crash the application by supplying 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 NetworkSleuth | 3.0.0.0 |
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-47853 exploit
- Vendor Homepage product
- VulnCheck Advisory: NetworkSleuth 3.0.0.0 - 'Key' Denial of Service third-party-advisory