Medium severity · published Feb 11, 2026
CVE-2020-37206
ShareAlarmPro Advanced Network Access Control - 'Key' Denial of Service
5.5
CVSS
0.4%
EPSS
No
On KEV
Description
ShareAlarmPro 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 to trigger an application crash when pasted into the registration key field.
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)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nsauditor ShareAlarmPro Advanced Network Access Control · Nsasoft
All versions, or not specified · source: vendor
SH
Sharealarmpro · Nsasoft
All versions, or not specified · source: NVD
Affected product
NS
Nsauditor ShareAlarmPro Advanced Network Access Control
Nsasoft
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-37206
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-37206
Product
http://www.nsauditor.com/
Exploit
https://www.exploit-db.com/exploits/47859
Third Party Advisory
https://www.vulncheck.com/advisories/sharealarmpro-advanced-network-access-control-key-denial-of-service