What’s Vulnerable › Vulnerabilities

CVE-2021-33141

• Severity: high (CVSS 8.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% 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 an unauthenticated user to potentially enable denial of service via network 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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