CVE-2020-37206

ShareAlarmPro Advanced Network Access Control - 'Key' Denial of Service

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.

Affected

Nsasoft · Nsauditor ShareAlarmPro Advanced Network Access Control

CVSS v4.0 VULNCHECK

4.6 MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 NVD

5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v3.1 VULNCHECK

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.43% chance of exploitation in the next 30 days, 36th percentile

Published

2026-02-11

Updated

2026-07-28

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/47859

Security advisories

• https://www.vulncheck.com/advisories/sharealarmpro-advanced-network-access-control-key-de…
• http://www.nsauditor.com

References

• CVE Record
• NVD entry