What’s Vulnerable › Vulnerabilities

CVE-2020-8703

• Severity: medium (CVSS 6.7 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: 2021-06-09 · updated 2026-06-17
• Weakness: CWE-119

Description

Improper buffer restrictions in a subsystem in the Intel(R) CSME versions before 11.8.86, 11.12.86, 11.22.86, 12.0.81, 13.0.47, 13.30.17, 14.1.53, 14.5.32 and 15.0.22 may allow a privileged user to potentially enable escalation of privilege via local access.

Affected products

• Intel Converged Security And Manageability Engine: before 12.0.81; before 13.0.47; before 13.30.17; before 14.1.53; before 14.5.32; before 11.8.86 — fixed in 11.12.86, 11.22.86, 11.8.86, 12.0.81, 13.0.47, 13.30.17
• NetApp Cloud Backup: all versions
• 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 Converged Security And Manageability Engine 11.12.86, 11.22.86, 11.8.86, 12.0.81; 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://security.netapp.com/advisory/ntap-20210611-0004/
• 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://security.netapp.com/advisory/ntap-20210611-0004/
• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00459.html

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