Login Request a demo
Medium severity · published Feb 11, 2026
CVE-2020-37199
NBMonitor 1.6.6.0 - 'Key' Denial of Service
5.5
CVSS
0.5%
EPSS
No
On KEV
Description
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 an application crash.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NN
Nsauditor NBMonitor · Nsasoft
1.6.6.0 · source: vendor
NB
Nbmonitor · Nsasoft
through 1.6.6.0 · source: NVD
Affected product
NN
Nsauditor NBMonitor
Nsasoft
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-37199
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-37199
Product
http://www.nsauditor.com/
Exploit
https://www.exploit-db.com/exploits/47866
Third Party Advisory
https://www.vulncheck.com/advisories/nbmonitor-key-denial-of-service