Multiple vulnerabilities in Siemens Gridscale X Prepay

Published: 2025-12-10

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2025-40806 CVE-2025-40807
CWE-ID	CWE-204 CWE-294
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Gridscale X Prepay Hardware solutions / Firmware
Vendor	Siemens

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Observable Response Discrepancy

EUVDB-ID: #VU119813

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-40806

CWE-ID: CWE-204 - Observable Response Discrepancy

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information on the system.

The vulnerability exists due to distinguishable responses. A remote attacker can determine if a user is valid or not.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Gridscale X Prepay: before 4.2.1

CPE2.3

cpe:2.3:h:siemens:gridscale_x_prepay:*:*:*:*:*:*:*:*

External links

https://cert-portal.siemens.com/productcert/html/ssa-356310.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Authentication Bypass by Capture-replay

EUVDB-ID: #VU119814