What’s Vulnerable › Vulnerabilities

CVE-2023-30757

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-13 · updated 2026-06-17
• Weakness: CWE-693

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.

Affected products

• Siemens Totally Integrated Automation Portal: 14.0, 15, 15.1, 16, 17, 18

References

• https://cert-portal.siemens.com/productcert/html/ssa-042050.html
• https://cert-portal.siemens.com/productcert/pdf/ssa-042050.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-042050.pdf

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