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Vulnerability record · CVE-2020-28390 · published 12 January 2021

CVE-2020-28390: Siemens opcenter execution core insufficiently protected credentials vulnerability

Siemens · Opcenter Execution Core

A vulnerability has been identified in Opcenter Execution Core (V8.2), Opcenter Execution Core (V8.3). The application contains an information leakage vulnerability in the handling of web client sessions. A local attacker who has access to the Web Client Session Storage could disclose the passwords of currently logged-in users.

5.5 CVSS 3.1 Medium EPSS 0.46% · top 59.7% CWE-522 · Insufficiently protected credentials
5.5CVSS 3.1 base score, v2 2.1
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

A vulnerability has been identified in Opcenter Execution Core (V8.2), Opcenter Execution Core (V8.3). The application contains an information leakage vulnerability in the handling of web client sessions. A local attacker who has access to the Web Client Session Storage could disclose the passwords of currently logged-in users.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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-604937.pdf Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-051/ Not Applicable
https://cert-portal.siemens.com/productcert/pdf/ssa-604937.pdf Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-051/ Not Applicable

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Source: NIST National Vulnerability Database (record CVE-2020-28390), CISA KEV, FIRST EPSS (scores of 2026-11-12). This page is refreshed as NVD updates the record.