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TI-2025-27254 Aliases CVE-2025-40807GHSA-mfph-p7r3-jvfm

Authentication bypass by capture-replay in Siemens Gridscale X Prepay

Priority LOW 24CWE-294Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-294.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00302 23rd percentileScored 2026-11-07
Fix Fixed Gridscale X Prepay (Siemens): V4.2.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SiemensGridscale X Prepaybefore V4.2.1V4.2.1Patch availableCNA
  • Gridscale X Prepay VendorSiemens Affected before V4.2.1 Fixed in V4.2.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:siemens:gridscale_x_prepay:*:*:*:*:*:*:*:*before 4.2.1VulnerableSiemens
  • cpe:2.3:a:siemens:gridscale_x_prepay:*:*:*:*:*:*:*:* Versions before 4.2.1 Vulnerable ·Siemens

Remediation

  • Fix · CNA Gridscale X Prepay (Siemens) Fixed in V4.2.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Siemens Gridscale X Prepay V4.2.1

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2025-27253 A vulnerability has been identified in Gridscale X Prepay (All versions < V4.2.1).Priority LOW 37
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-40807
  2. 2026-10-03 Alias added: GHSA-mfph-p7r3-jvfm

References

Advisory 1

  • TI-2025-27253 A vulnerability has been identified in Gridscale X Prepay (All versions < V4.2.1). CVSS 4.0MEDIUM 6.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences