CVE-2025-40807

MEDIUM

Gridscale X Prepay <V4.2.1 - Auth Bypass

Title source: llm

Description

A vulnerability has been identified in Gridscale X Prepay (All versions < V4.2.1). The affected application is vulnerable to capture-replay of authentication tokens. This could allow an authenticated but already locked-out user to establish still valid user sessions.

References (1)

[Vendor Advisory] https://cert-portal.siemens.com/productcert/html/ssa-356310.html

Scores

CVSS v3 6.3

EPSS 0.0005

EPSS Percentile 14.2%

Attack Vector NETWORK

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

Classification

CWE

CWE-294

Status published

Affected Products (1)

siemens/gridscale_x_prepay < 4.2.1

Timeline

Published Dec 09, 2025

Tracked Since Feb 18, 2026