What’s Vulnerable › Vulnerabilities

CVE-2020-8704

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-06-09 · updated 2026-06-17
• Weakness: CWE-362

Description

Race condition in a subsystem in the Intel(R) LMS versions before 2039.1.0.0 may allow a privileged user to potentially enable escalation of privilege via local access.

Affected products

• Intel Local Manageability Service: before 2039.1.0.0 — fixed in 2039.1.0.0
• Siemens Simatic Field Pg M5 Firmware: all versions
• Siemens Simatic Field Pg M6 Firmware: all versions
• Siemens Simatic Ipc427E Firmware: all versions
• Siemens Simatic Ipc477E Firmware: all versions
• Siemens Simatic Ipc477E Pro Firmware: all versions
• Siemens Simatic Ipc527G Firmware: all versions
• Siemens Simatic Ipc547G Firmware: all versions
• Siemens Simatic Ipc627E Firmware: before 25.02.10 — fixed in 25.02.10
• Siemens Simatic Ipc647E Firmware: before 25.02.10 — fixed in 25.02.10
• Siemens Simatic Ipc677E Firmware: before 25.02.10 — fixed in 25.02.10
• Siemens Simatic Ipc847E Firmware: before 25.02.10 — fixed in 25.02.10
• Siemens Simatic Itp1000 Firmware: all versions

How to fix

Upgrade to a fixed version: Intel Local Manageability Service 2039.1.0.0; Siemens Simatic Ipc627E Firmware 25.02.10; Siemens Simatic Ipc647E Firmware 25.02.10; Siemens Simatic Ipc677E Firmware 25.02.10; Siemens Simatic Ipc847E Firmware 25.02.10. Check the vendor advisory for mitigations.

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-309571.pdf
• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00459.html
• https://cert-portal.siemens.com/productcert/pdf/ssa-309571.pdf
• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00459.html

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