Buffer overflow in Nsasoft Nsauditor Networksleuth
CVE-2020-37202
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (25.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Nsasoft Nsauditor Networksleuth — versions 3.0.0.0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/47853 (exploit)
- www.nsauditor.com/ (product)
- www.vulncheck.com/advisories/networksleuth-key-denial-of-service (third-party-advisory)
Frequently asked questions
- What is CVE-2020-37202?
- CVE-2020-37202 is a high-severity vulnerability in Nsasoft Nsauditor Networksleuth, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2026-02-11.
- How severe is CVE-2020-37202?
- High severity. CVSS v3 base score is 7.5 out of 10.