What is CVE-2020-37199?

CVE-2020-37199 is a high-severity vulnerability in Nsasoft Nbmonitor, 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-2020-37199?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Nsasoft Nbmonitor

CVE-2020-37199

NBMonitor 1.6.6.0 contains a denial of service vulnerability in its registration key input that allows attackers to crash the application. Attackers can generate a 1000-character buffer payload and paste it into the 'Key' field to trigger…

Vulnerability class: Buffer Overflow

EPSS: 0.004 (35.2th percentile) — read the EPSS interpretation.

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.

Affected products

Nsasoft Nbmonitor
Nsasoft Nsauditor Nbmonitor — versions 1.6.6.0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

disclosure@vulncheck.com (Exploit, VDB Entry, exploit)
disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2020-37199?: CVE-2020-37199 is a high-severity vulnerability in Nsasoft Nbmonitor, 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-2020-37199?: High severity. CVSS v3 base score is 7.5 out of 10.