What’s Vulnerable › Vulnerabilities

CVE-2020-0559

• Severity: high (CVSS 7.8 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: 2020-08-13 · updated 2026-06-17
• Weakness: CWE-732

Description

Insecure inherited permissions in some Intel(R) PROSet/Wireless WiFi products on Windows* 7 and 8.1 before version 21.40.5.1 may allow an authenticated user to potentially enable escalation of privilege via local access.

Affected products

• Intel Ac 3165 Firmware: before 21.40.5.1 — fixed in 21.40.5.1
• Intel Ac 3168 Firmware: before 21.40.5.1 — fixed in 21.40.5.1
• Intel Ac 7265 Firmware: before 21.40.5.1 — fixed in 21.40.5.1
• Intel Ac 8260 Firmware: before 21.40.5.1 — fixed in 21.40.5.1
• Intel Ac 8265 Firmware: before 21.40.5.1 — fixed in 21.40.5.1
• Intel Ac 9260 Firmware: before 21.40.5.1 — fixed in 21.40.5.1
• Intel Ac 9461 Firmware: before 21.40.5.1 — fixed in 21.40.5.1
• Intel Ac 9462 Firmware: before 21.40.5.1 — fixed in 21.40.5.1
• Intel Ac 9560 Firmware: before 21.40.5.1 — fixed in 21.40.5.1
• Intel Atom X5-E3930: all versions
• Intel Atom X5-E3940: all versions
• Intel Atom X7-E3950: all versions
• Intel Ax200 Firmware: before 21.40.5.1 — fixed in 21.40.5.1
• Intel Ax201 Firmware: before 21.40.5.1 — fixed in 21.40.5.1
• Intel Celeron J1750: all versions
• Intel Celeron J1800: all versions
• Intel Celeron J1850: all versions
• Intel Celeron J1900: all versions
• Intel Celeron J3060: all versions
• Intel Celeron J3160: all versions
• Intel Celeron J3355: all versions
• Intel Celeron J3355E: all versions
• Intel Celeron J3455: all versions
• Intel Celeron J3455E: all versions
• Intel Celeron J4005: all versions
• Intel Celeron J4025: all versions
• Intel Celeron J4105: all versions
• Intel Celeron J4125: all versions
• Intel Celeron J6412: all versions
• Intel Celeron J6413: all versions

How to fix

Upgrade to a fixed version: Intel Ac 3165 Firmware 21.40.5.1; Intel Ac 3168 Firmware 21.40.5.1; Intel Ac 7265 Firmware 21.40.5.1; Intel Ac 8260 Firmware 21.40.5.1; Intel Ac 8265 Firmware 21.40.5.1; Intel Ac 9260 Firmware 21.40.5.1; Intel Ac 9461 Firmware 21.40.5.1; Intel Ac 9462 Firmware 21.40.5.1; Intel Ac 9560 Firmware 21.40.5.1; Intel Ax200 Firmware 21.40.5.1; Intel Ax201 Firmware 21.40.5.1. Check the vendor advisory for mitigations.

References

• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00355.html
• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00360.html
• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00355.html
• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00360.html

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