CVE-2024-40719

MEDIUM EPSS 7.2%

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

6.5 CVSS 3.1

Medium

Published Aug 2, 2024 1y ago

Last Modified Jun 17, 2026 2w ago

Description

The encryption strength of the authorization keys in CHANGING Information Technology TCBServiSign Windows Version is insufficient. When a remote attacker tricks a victim into visiting a malicious website, TCBServiSign will treat that website as a legitimate server and interact with it.

CVSS Details

Base Score

6.5

Exploitability

2.8

Impact

3.6

Vector string

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

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction Required

Scope Unchanged

Confidentiality High

Integrity None

Availability None

Threat Intelligence

EPSS Exploit Probability

7.2% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-326

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-139-7970-e8ac5-2.html

Third Party Advisory
twcert.org.tw https://www.twcert.org.tw/tw/cp-132-7964-5b266-1.html

Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.