Description
A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions < V4.1 Update 3), SIMATIC PCS neo V5.0 (All versions < V5.0 Update 1). Affected products do not correctly invalidate user sessions upon user logout. This could allow a remote unauthenticated attacker, who has obtained the session token by other means, to re-use a legitimate user's session even after logout.
Published: 2025-05-13
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2025-14680 A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions < V4.1 Update 3), SIMATIC PCS neo V5.0 (All versions < V5.0 Update 1). Affected products do not correctly invalidate user sessions upon user logout. This could allow a remote unauthenticated attacker, who has obtained the session token by other means, to re-use a legitimate user's session even after logout.
History

Fri, 22 Aug 2025 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Siemens
Siemens simatic Pcs Neo
CPEs cpe:2.3:a:siemens:simatic_pcs_neo:*:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_pcs_neo:*:-:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_pcs_neo:4.1:update_1:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_pcs_neo:4.1:update_2:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_pcs_neo:5.0:-:*:*:*:*:*:*
Vendors & Products Siemens
Siemens simatic Pcs Neo

Tue, 13 May 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Tue, 13 May 2025 09:45:00 +0000

Type Values Removed Values Added
Description A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions < V4.1 Update 3), SIMATIC PCS neo V5.0 (All versions < V5.0 Update 1). Affected products do not correctly invalidate user sessions upon user logout. This could allow a remote unauthenticated attacker, who has obtained the session token by other means, to re-use a legitimate user's session even after logout.
Weaknesses CWE-613
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

Siemens Simatic Pcs Neo
cve-icon MITRE

Status: PUBLISHED

Assigner: siemens

Published:

Updated: 2025-05-13T18:47:35.480Z

Reserved: 2025-04-16T08:20:17.031Z

Link: CVE-2025-40566

cve-icon Vulnrichment

Updated: 2025-05-13T18:47:31.828Z

cve-icon NVD

Status : Analyzed

Published: 2025-05-13T10:15:26.183

Modified: 2025-08-22T20:28:42.893

Link: CVE-2025-40566

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses