What is the CVSS score of CVE-2025-27494?

CVE-2025-27494 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Which versions of SiPass are affected by CVE-2025-27494?

Organizations using A vulnerability face critical risk from CVE-2025-27494, a input validation vulnerability rated CVSS 9.1.

How to fix or mitigate CVE-2025-27494?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Monitor vendor channels for patch availability.

SiPass CVE-2025-27494

CRITICAL

Improper Input Validation (CWE-20)

2025-03-11 productcert@siemens.com

Code Injection

9.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.1 CRITICAL

AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 19:52 vuln.today

CVE Published

Mar 11, 2025 - 10:15 nvd

CRITICAL 9.1

DescriptionCVE.org

A vulnerability has been identified in SiPass integrated AC5102 (ACC-G2) (All versions < V6.4.9), SiPass integrated ACC-AP (All versions < V6.4.9). Affected devices improperly sanitize input for the pubkey endpoint of the REST API. This could allow an authenticated remote administrator to escalate privileges by injecting arbitrary commands that are executed with root privileges.

AnalysisAI

Siemens SiPass integrated access control systems (AC5102 ACC-G2 and ACC-AP, before V6.4.9) allow authenticated administrators to escalate to root via command injection in the REST API's pubkey endpoint. While high privileges are required, the scope change enables full system compromise.

Technical ContextAI

The pubkey endpoint of the REST API fails to sanitize administrator-supplied input before passing it to a system command (CWE-20). An authenticated administrator can inject OS commands that execute with root privileges, escalating beyond their intended access level.

Affected ProductsAI

SiPass integrated AC5102 (ACC-G2) < V6.4.9, SiPass integrated ACC-AP < V6.4.9

RemediationAI

Update to SiPass integrated V6.4.9 or later. Restrict admin API access to trusted networks. Audit admin account usage and implement MFA for admin access.