VULNERABILITY INTELLIGENCE
CVE-2021-37909
CVSS score9.8 CRITICAL
EPSS probability2.01%
CISA KEVNot currently listed
Published2021-09-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
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.
Weakness classification
- twcert@cert.org.tw: CWE-20
Primary references
- twcert@cert.org.tw — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory