CVE-2021-30657A logic issue was addressed with improved state management.
Updated under an hour ago ()
Does this affect you?
It affects Apple macOS and 1 other product. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Nov 3, 2021; federal agencies had to remediate by Nov 17, 2021. Treat that date as your deadline.
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Free account, 1 product
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. Apple is aware of a report that this issue may have been actively exploited..
- CVSS
- 5.5 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- Weakness (CWE)
- CWE-862
- Known exploited
- Added to CISA KEV Nov 3, 2021; federal remediation due Nov 17, 2021Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 68.53% (percentile 99)
- Assigned by
- apple
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Apple macOS apple:macos (from the name) | from unspecified before 11.3 | CNA record |
apple mac_os_x apple:mac_os_x | from 10.15 through 10.15.5; 10.15.6; 10.15.6; 10.15.7; 10.15.7; 10.15.7; 10.15.7; 10.15.7; and 1 more ranges | NVD |
apple macos apple:macos | from 11.0 before 11.3 | NVD |
References
- https://support.apple.com/en-us/HT212325x-refsource-misc, release-notes, vendor-advisory
- https://support.apple.com/en-us/HT212326x-refsource-misc, release-notes, vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30657third-party-advisory, us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.