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Vulnerability record · CVE-2023-46096 · published 14 November 2023

CVE-2023-46096: Siemens simatic pcs neo missing authentication for critical function vulnerability

Siemens · Simatic Pcs Neo

A vulnerability has been identified in SIMATIC PCS neo (All versions < V4.1). The PUD Manager of affected products does not properly authenticate users in the PUD Manager web service. This could allow an unauthenticated adjacent attacker to generate a privileged token and upload additional documents.

6.5 CVSS 3.1 Medium EPSS 0.32% · top 77.3% CWE-306 · Missing authentication for critical function
6.5CVSS 3.1 base score
0.32%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A vulnerability has been identified in SIMATIC PCS neo (All versions < V4.1). The PUD Manager of affected products does not properly authenticate users in the PUD Manager web service. This could allow an unauthenticated adjacent attacker to generate a privileged token and upload additional documents.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://cert-portal.siemens.com/productcert/pdf/ssa-456933.pdf PatchVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-456933.pdf PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2025-40795Siemens simatic pcs neo stack-based buffer overflow vulnerabilityA vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), SIMATIC PCS neo V6.0 (All versions <…EPSS 0.70%9.1CVE-2021-20093Wibu codemeter out-of-bounds read vulnerabilityA buffer over-read vulnerability exists in Wibu-Systems CodeMeter versions < 7.21a. An unauthenticated remote attacker can exploit this issue to disc…EPSS 33%8.8CVE-2023-46281Siemens opcenter quality vulnerabilityA vulnerability has been identified in Opcenter Execution Foundation (All versions < V2407), Opcenter Quality (All versions < V2312), SIMATIC PCS neo…EPSS 0.94%8.8CVE-2023-46098Siemens simatic pcs neo vulnerabilityA vulnerability has been identified in SIMATIC PCS neo (All versions < V4.1). When accessing the Information Server from affected products, the produ…EPSS 0.62%8.7CVE-2025-40798Siemens simatic pcs neo out-of-bounds read vulnerabilityA vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), SIMATIC PCS neo V6.0 (All versions <…EPSS 0.52%8.7CVE-2025-40796Siemens simatic pcs neo out-of-bounds read vulnerabilityA vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), SIMATIC PCS neo V6.0 (All versions <…EPSS 0.48%8.7CVE-2025-40797Siemens simatic pcs neo out-of-bounds read vulnerabilityA vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), SIMATIC PCS neo V6.0 (All versions <…EPSS 0.52%8.7CVE-2025-40566Siemens simatic pcs neo insufficient session expiration vulnerabilityA 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). Affe…EPSS 0.46%

Source: NIST National Vulnerability Database (record CVE-2023-46096), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.