What’s Vulnerable › Vulnerabilities

CVE-2020-9817

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-06-09 · updated 2026-06-17
• Weakness: CWE-276

Description

A permissions issue existed. This issue was addressed with improved permission validation. This issue is fixed in macOS Catalina 10.15.5. A malicious application may be able to gain root privileges.

Affected products

• macOS: from 10.13 before 10.13.6; from 10.14 before 10.14.6; from 10.15 before 10.15.5; 10.13.6, 10.13.6-security_update_2018-002, 10.13.6-security_update_2018-003, 10.13.6-security_update_2019-001, 10.13.6-security_update_2019-002, 10.13.6-security_update_2019-003 (+15) — fixed in 10.13.6, 10.14.6, 10.15.5

How to fix

Upgrade to a fixed version: macOS 10.13.6, 10.14.6, 10.15.5. Check the vendor advisory for mitigations.

References

• https://support.apple.com/HT211170
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-mac-priv-esc-VqST2nrT
• https://support.apple.com/HT211170
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-mac-priv-esc-VqST2nrT

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