High 7.8Known exploited (CISA KEV)Published Aug 24, 2021

CVE-2021-30869A type confusion issue was addressed with improved state handling.

Updated under an hour ago (2026-10-19 06:20 UTC)

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It affects Apple iOS and iPadOS and 4 other products. 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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Every CVE for Apple iOS and iPadOS

Exploited in the last 30 days

A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 12.5.5, iOS 14.4 and iPadOS 14.4, macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, Security Update 2021-006 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges. Apple is aware of reports that an exploit for this issue exists in the wild.

CVSS: 7.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-843
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): 4.13% (percentile 91)
Assigned by: apple
NVD analysis: Analyzed
Record last updated: Oct 21, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Apple iOS and iPadOS apple:ios_and_ipados (from the name)	from unspecified before 14.4	CNA record
Apple macOS apple:macos (from the name)	from unspecified before 11.2	CNA record
apple ipados apple:ipados	before 14.4	NVD
apple iphone_os apple:iphone_os	from 12.0 before 12.5.5; from 14.0 before 14.4	NVD
apple mac_os_x apple:mac_os_x	from 10.14 through 10.14.6; from 10.15 through 10.15.6; 10.14.6; 10.14.6; 10.14.6; 10.14.6; 10.14.6; 10.14.6; and 17 more ranges	NVD
apple macos apple:macos	from 11.0 before 11.2	NVD

References

https://support.apple.com/en-us/HT212147x-refsource-misc, vendor-advisory
https://support.apple.com/en-us/HT212146x-refsource-misc, vendor-advisory
https://support.apple.com/en-us/HT212824x-refsource-misc, vendor-advisory
https://support.apple.com/en-us/HT212825x-refsource-misc, vendor-advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30869us-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.