What’s Vulnerable › Vulnerabilities

CVE-2023-48387: TAIWAN-CA(TWCA) JCICSecurityTool - Improper Input Validation

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-12-15 · updated 2026-06-17
• Weakness: CWE-940

Description

TAIWAN-CA(TWCA) JCICSecurityTool fails to check the source website and access locations when executing multiple Registry-related functions. In the scenario where a user is using the JCICSecurityTool and has completed identity verification, if the user browses a malicious webpage created by an attacker, the attacker can exploit this vulnerability to read or modify any registry file under HKEY_CURRENT_USER, thereby achieving remote code execution.

Affected products

• TAIWAN-CA(TWCA) JCICSecurityTool: 4.2.3.32

References

• https://www.twcert.org.tw/tw/cp-132-7602-a47a2-1.html
• https://www.twcert.org.tw/tw/cp-132-7602-a47a2-1.html

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