What’s Vulnerable › Vulnerabilities

CVE-2021-33161

• Severity: high (CVSS 7.2 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: 2024-02-23 · updated 2026-06-17
• Weakness: CWE-20

Description

Improper input validation in some Intel(R) Ethernet Adapters and Intel(R) Ethernet Controller I225 Manageability firmware may allow a privileged user to potentially enable escalation of privilege via local access.

Affected products

• Intel(R) Ethernet tools and driver install software: before 29.0.1 — fixed in 29.0.1
• Intel Ethernet Controller I225-It Firmware: before 1.87 — fixed in 1.87
• Intel Ethernet Controller I225-Lm Firmware: before 1.87 — fixed in 1.87
• Intel Ethernet Controller I225-V Firmware: before 1.87 — fixed in 1.87

How to fix

Upgrade to a fixed version: Intel(R) Ethernet tools and driver install software 29.0.1; Intel Ethernet Controller I225-It Firmware 1.87; Intel Ethernet Controller I225-Lm Firmware 1.87; Intel Ethernet Controller I225-V Firmware 1.87. Check the vendor advisory for mitigations.

References

• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00756.html
• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00756.html

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