What’s Vulnerable › Vulnerabilities

CVE-2021-1810

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-09-08 · updated 2026-06-17

Description

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina. A malicious application may bypass Gatekeeper checks.

Affected products

• macOS: from 10.15 through 10.15.5; 10.15.6, 10.15.6-supplemental_update, 10.15.7, 10.15.7-security_update_2020, 10.15.7-security_update_2020-001, 10.15.7-security_update_2020-005 (+3)
• Apple macOS: from 11.0 before 11.3 — fixed in 11.3

How to fix

Upgrade to a fixed version: Apple macOS 11.3. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/164375/Gatekeeper-Bypass-Proof-Of-Concept.html
• https://support.apple.com/en-us/HT212325
• https://support.apple.com/en-us/HT212326
• http://packetstormsecurity.com/files/164375/Gatekeeper-Bypass-Proof-Of-Concept.html
• https://support.apple.com/en-us/HT212325
• https://support.apple.com/en-us/HT212326

Get alerted when CVE-2021-1810 or the next vulnerability affects your stack