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CVE-2018-16089: System Management Module Vulnerabilities

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-11-27 · updated 2026-06-17
• Weakness: CWE-78

Description

In System Management Module (SMM) versions prior to 1.06, a field in the header of SMM firmware update images is insufficiently sanitized, allowing post-authentication command injection on the SMM as the root user.

Affected products

• Lenovo System Management Module Firmware: before 1.06 — fixed in 1.06

How to fix

Upgrade to a fixed version: Lenovo System Management Module Firmware 1.06. Check the vendor advisory for mitigations.

References

• https://support.lenovo.com/us/en/solutions/LEN-24374
• https://support.lenovo.com/us/en/solutions/LEN-24374

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