What’s Vulnerable › Vulnerabilities

CVE-2020-10048

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-02-09 · updated 2026-06-17
• Weakness: CWE-288

Description

A vulnerability has been identified in SIMATIC PCS 7 (All versions), SIMATIC WinCC (All versions < V7.5 SP2). Due to an insecure password verification process, an attacker could bypass the password protection set on protected files, thus being granted access to the protected content, circumventing authentication.

Affected products

• Siemens SIMATIC PCS 7: all versions
• Siemens Simatic Wincc: before 7.5; 7.5-sp1, 7.5-sp1_update1, 7.5-sp1_update2 — fixed in 7.5

How to fix

Upgrade to a fixed version: Siemens Simatic Wincc 7.5. Check the vendor advisory for mitigations.

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-944678.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-944678.pdf

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