Authentication Flaw in OpenSIAC by GTTS Group
CVE-2025-41064

9.3CRITICAL

Key Information:

Vendor

Gtt

Status
Opensiac
Vendor
CVE Published:
2 October 2025

What is CVE-2025-41064?

An incorrect authentication vulnerability exists in OpenSIAC, a product by GTTS Group, allowing attackers to impersonate users leveraging Cl@ve as an authentication method. This flaw poses a significant risk as it can enable unauthorized access, leading to potential data breaches and identity theft.

Affected Version(s)

OpenSIAC 1.0

References

https://www.incibe.es/en/incibe-cert/notices/aviso/incorr...

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

David Manuel Herrera RodrĂ­guez
JSON
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CVE-2025-41064 : Authentication Flaw in OpenSIAC by GTTS Group