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Vulnerability record · CVE-2021-27389 · published 22 April 2021

CVE-2021-27389: Siemens opcenter quality vulnerability

Siemens · Opcenter Quality

A vulnerability has been identified in Opcenter Quality (All versions < V12.2), QMS Automotive (All versions < V12.30). A private sign key is shipped with the product without adequate protection.

9.8 CVSS 3.1 Critical EPSS 1.0% · top 37.7% CWE-321 · CWE-321
9.8CVSS 3.1 base score, v2 7.5
1.0%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 Opcenter Quality (All versions < V12.2), QMS Automotive (All versions < V12.30). A private sign key is shipped with the product without adequate protection.

CVSS:3.1/AV:N/AC:L/PR:N/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-788287.pdf Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-788287.pdf Vendor Advisory

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2021-27389), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.