CVE-2024-40720

HIGH EPSS 42.4%

Published Aug 2, 20241y ago · Modified Jun 17, 20262w ago

8.8 CVSS 3.1

High

Published Aug 2, 2024 1y ago

Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score

8.8

Exploitability

2.8

Impact

5.9

Vector string

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

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction Required

Scope Unchanged

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS Exploit Probability

42.4% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-20 Improper Input Validation Validation

Affected Products 1

Vendor	Product	Version	Range
changingtec	tcb_servisign	*	<1.0.24.0318

References 2

twcert.org.tw https://www.twcert.org.tw/en/cp-139-7971-d9584-2.html

Third Party Advisory
twcert.org.tw https://www.twcert.org.tw/tw/cp-132-7965-8285d-1.html

Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.