How severe is CVE-2020-28390?

CVE-2020-28390 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-28390 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-28390?

CVE-2020-28390 primarily affects Siemens Opcenter Execution Core. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-28390?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-28390 published?

CVE-2020-28390 was published on 2021-01-12 and last updated on 2026-06-17.

CVE-2020-28390

CVE-2020-28390 is a medium-severity vulnerability in Siemens Opcenter Execution Core with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-522.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-522
Affected product: Siemens Opcenter Execution Core
Published: 2021-01-12
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2020-28390?: 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.
How severe is CVE-2020-28390?: CVE-2020-28390 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-28390 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-28390?: CVE-2020-28390 primarily affects Siemens Opcenter Execution Core. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-28390?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-28390 published?: CVE-2020-28390 was published on 2021-01-12 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:siemens:opcenter_execution_core:8.2:*:*:*:*:*:*:*
cpe:2.3:a:siemens:opcenter_execution_core:8.3:*:*:*:*:*:*:*

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