CVE-2024-40720

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

The specific API in TCBServiSign Windows Version from CHANGING Information Technology does not properly validate server-side input. When a user visits a spoofed website, unauthenticated remote attackers can modify the `HKEY_CURRENT_USER` registry to execute arbitrary commands.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-20

Affected software

Vendor	Product	Versions
CHANGING Information Technology	TCBServiSign Windows Version	< 1.0.24.0318
changinginformationtechnology	tcbservisign	< 1.0.24.0318

References

https://www.twcert.org.tw/en/cp-139-7971-d9584-2.htmlThird Party Advisory
https://www.twcert.org.tw/tw/cp-132-7965-8285d-1.htmlThird Party Advisory

Timeline

Published: Aug 2, 2024
Last modified: Jun 17, 2026
NVD status: Analyzed

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