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5.5

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.6. A malicious application may bypass Gatekeeper checks.

CVE-2021-30853 · published 5 years ago
Summary

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.6. A malicious application may bypass Gatekeeper checks.

What to do
  • Update apple macos to version 11.6 or later.
Affected software
VendorProductAffected versions
apple macos < 11.6
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Original advisory text
This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.6. A malicious application may bypass Gatekeeper checks.
This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.6. A malicious application may bypass Gatekeeper checks.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
5.5 Medium
Exploitation
7% chance of attack within 30 days
Type
CWE-787Out-of-bounds Write
Timeline
Published24 Aug 2021
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2021-30853 · NVD
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