CVE-2021-37909: Tssservisignadapter Project Tssservisignadapter

Critical severity, CVSS 9.8. EPSS: 2% chance of exploitation in the next 30 days.

WriteRegistry function in TSSServiSign component does not filter and verify users’ input, remote attackers can rewrite to the registry without permissions thus perform hijack attacks to execute arbitrary code.

Affected products

• Tssservisignadapter Project Tssservisignadapter: up to and including 1.0.20.0316

Published 2021-09-15. Last modified 2026-06-17.