CVE-2024-40719

CHANGING Information Technology TCBServiSign Windows Version - Inadequate Encryption Strength

Published Aug 2, 2024 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Update to version 1.0.24.0318 or later.

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2024-38584 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.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Changingtec
Changingtec tcb Servisign
CPEs cpe:2.3:a:changingtec:tcb_servisign:*:*:*:*:*:windows:*:*
Vendors & Products Changingtec
Changingtec tcb Servisign
Weaknesses

Sources

Status
PUBLISHED
Assigner
twcert
Published
Updated
Aug 2, 2024, 3:30 PM
Reserved
Jul 9, 2024, 3:30 AM
Status
Analyzed
Published
Aug 2, 2024, 10:16 AM
Modified
Jun 17, 2026, 7:46 AM