What’s Vulnerable › Vulnerabilities

CVE-2021-33137

• Severity: high (CVSS 7.8 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: 2022-02-09 · updated 2026-06-17
• Weakness: CWE-787

Description

Out-of-bounds write in the Intel(R) Kernelflinger project may allow an authenticated user to potentially enable escalation of privilege via local access.

Affected products

• Intel(R) Kernelflinger project: before 2021-06-28 — fixed in 2021-06-28

How to fix

Upgrade to a fixed version: Intel(R) Kernelflinger project 2021-06-28. Check the vendor advisory for mitigations.

References

• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00591.html
• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00591.html

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