CVE-2025-41064 CRITICAL

CVE-2025-41064: Incorrect authentication in GTT´s group OpenSIAC

Vendor Gtt
Product OpenSIAC
Weakness CWE-287 · Improper authentication
Published October 2, 2025
Last update October 2, 2025

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Incorrect authentication vulnerability in OpenSIAC, which could allow an attacker to impersonate a person using Cl@ve as an authentication method.

Key dates

02Disclosure timeline

October 2, 2025 CVE published
October 2, 2025 Record updated