How severe is CVE-2023-30757?

CVE-2023-30757 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-30757 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-30757?

CVE-2023-30757 primarily affects Siemens Totally Integrated Automation Portal. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-30757?

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

When was CVE-2023-30757 published?

CVE-2023-30757 was published on 2023-06-13 and last updated on 2026-06-17.

CVE-2023-30757

CVE-2023-30757 is a medium-severity vulnerability in Siemens Totally Integrated Automation Portal with a CVSS 3.x base score of 6.2. 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-693.

Key facts

Severity: Medium (CVSS 3.x base score 6.2)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-693
Affected product: Siemens Totally Integrated Automation Portal
Published: 2023-06-13
Last modified: 2026-06-17

Description

A vulnerability has been identified in Totally Integrated Automation Portal (TIA Portal) V14 (All versions), Totally Integrated Automation Portal (TIA Portal) V15 (All versions), Totally Integrated Automation Portal (TIA Portal) V15.1 (All versions), Totally Integrated Automation Portal (TIA Portal) V16 (All versions), Totally Integrated Automation Portal (TIA Portal) V17 (All versions), Totally Integrated Automation Portal (TIA Portal) V18 (All versions), Totally Integrated Automation Portal (TIA Portal) V19 (All versions), Totally Integrated Automation Portal (TIA Portal) V20 (All versions). The know-how protection feature in affected products does not properly update the encryption of existing program blocks when a project file is updated. This could allow attackers with access to the project file to recover previous - yet unprotected - versions of the project without the knowledge of the know-how protection password.

Frequently asked questions

What is CVE-2023-30757?: A vulnerability has been identified in Totally Integrated Automation Portal (TIA Portal) V14 (All versions), Totally Integrated Automation Portal (TIA Portal) V15 (All versions), Totally Integrated Automation Portal (TIA Portal) V15.1 (All versions), Totally Integrated Automation Portal (TIA Portal) V16 (All versions), Totally Integrated Automation Portal (TIA Portal) V17 (All versions), Totally Integrated Automation Portal (TIA Portal) V18 (All versions), Totally Integrated Automation Portal (TIA Portal) V19 (All versions), Totally Integrated Automation Portal (TIA Portal) V20 (All versions). The know-how protection feature in affected products does not properly update the encryption of existing program blocks when a project file is updated. This could allow attackers with access to the project file to recover previous - yet unprotected - versions of the project without the knowledge of the know-how protection password.
How severe is CVE-2023-30757?: CVE-2023-30757 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-30757 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-30757?: CVE-2023-30757 primarily affects Siemens Totally Integrated Automation Portal. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-30757?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-30757 published?: CVE-2023-30757 was published on 2023-06-13 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:siemens:totally_integrated_automation_portal:14.0:*:*:*:*:*:*:*
cpe:2.3:a:siemens:totally_integrated_automation_portal:15:*:*:*:*:*:*:*
cpe:2.3:a:siemens:totally_integrated_automation_portal:15.1:-:*:*:*:*:*:*
cpe:2.3:a:siemens:totally_integrated_automation_portal:16:*:*:*:*:*:*:*
cpe:2.3:a:siemens:totally_integrated_automation_portal:17:*:*:*:*:*:*:*
cpe:2.3:a:siemens:totally_integrated_automation_portal:18:*:*:*:*:*:*:*

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