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Vulnerability record · CVE-2021-40360 · published 9 February 2022

CVE-2021-40360: Siemens simatic pcs 7 information exposure vulnerability

Siemens · Simatic Pcs 7

A vulnerability has been identified in SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions), SIMATIC PCS 7 V9.1 (All versions < V9.1 SP1), SIMATIC WinCC V15 and earlier (All versions < V15 SP1 Update 7), SIMATIC WinCC V16 (All versions < V16 Update 5), SIMATIC WinCC V17 (All versions < V17 Update 2), SIMATIC WinCC V7.4 (All versions < V7.4 SP1 Update 19), SIMATIC WinCC V7.5 (All versions < V7.5 SP2 Update 6). The password hash of a local user account in the remote server could be granted via public API to a user on the affected system. An authenticated attacker could brute force the password hash and use it to login to the server.

8.8 CVSS 3.1 High EPSS 0.68% · top 49.5% CWE-200 · Information exposureCWE-522 · Insufficiently protected credentials
8.8CVSS 3.1 base score, v2 4.0
0.68%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A vulnerability has been identified in SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions), SIMATIC PCS 7 V9.1 (All versions < V9.1 SP1), SIMATIC WinCC V15 and earlier (All versions < V15 SP1 Update 7), SIMATIC WinCC V16 (All versions < V16 Update 5), SIMATIC WinCC V17 (All versions < V17 Update 2), SIMATIC WinCC V7.4 (All versions < V7.4 SP1 Update 19), SIMATIC WinCC V7.5 (All versions < V7.5 SP2 Update 6). The password hash of a local user account in the remote server could be granted via public API to a user on the affected system. An authenticated attacker could brute force the password hash and use it to login to the server.

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

Affected products

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

References

LinkTags
https://cert-portal.siemens.com/productcert/pdf/ssa-914168.pdf PatchVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-914168.pdf PatchVendor Advisory

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Related vulnerabilities

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

10.0CVE-2014-8551Siemens simatic pcs 7 code injection vulnerabilityThe WinCC server in Siemens SIMATIC WinCC 7.0 through SP3, 7.2 before Update 9, and 7.3 before Update 2; SIMATIC PCS 7 7.1 through SP4, 8.0 through S…EPSS 5.3%9.9CVE-2021-40358Siemens simatic pcs 7 path traversal vulnerabilityA vulnerability has been identified in SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3 UC04), SIMATIC PCS 7 V9.1 (All …EPSS 1.3%9.8CVE-2019-10922Siemens simatic pcs 7 missing authentication for critical function vulnerabilityA vulnerability has been identified in SIMATIC PCS 7 V8.0 and earlier (All versions), SIMATIC PCS 7 V8.1 and newer (All versions), SIMATIC WinCC V7.2…EPSS 2.6%9.8CVE-2016-5743Siemens simatic batch improper input validation vulnerabilitySiemens SIMATIC WinCC before 7.3 Update 10 and 7.4 before Update 1, SIMATIC BATCH before 8.1 SP1 Update 9 as distributed in SIMATIC PCS 7 through 8.1…EPSS 10%8.8CVE-2023-25910Siemens simatic pcs 7 code injection vulnerabilityA vulnerability has been identified in SIMATIC PCS 7 (All versions < V9.1 SP2 UC04), SIMATIC S7-PM (All versions < V5.7 SP1 HF1), SIMATIC S7-PM (All …EPSS 1.0%8.8CVE-2023-28829Siemens simatic net pc software vulnerabilityA vulnerability has been identified in SIMATIC NET PC Software V14 (All versions), SIMATIC NET PC Software V15 (All versions), SIMATIC PCS 7 V8.2 (Al…EPSS 0.29%8.8CVE-2019-10916Siemens simatic pcs 7 sql injection vulnerabilityA vulnerability has been identified in SIMATIC PCS 7 V8.0 and earlier (All versions), SIMATIC PCS 7 V8.1 (All versions < V8.1 with WinCC V7.3 Upd 19)…EPSS 1.5%8.8CVE-2019-10918Siemens simatic pcs 7 vulnerabilityA vulnerability has been identified in SIMATIC PCS 7 V8.0 and earlier (All versions), SIMATIC PCS 7 V8.1 (All versions < V8.1 with WinCC V7.3 Upd 19)…EPSS 1.9%

Source: NIST National Vulnerability Database (record CVE-2021-40360), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.