A type confusion issue was addressed with improved state handling.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Fix
- Fixed in 14.4, 11.2, 12.5, 2021
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Apple iOS, iPadOS, and macOS are affected. A malicious app could exploit this flaw to run arbitrary code with kernel-level privileges, giving it control over the entire device.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
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.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
Affected versions
- Apple iOS and iPadOS
From unspecified · fixed in 14.4
- Apple macOS
From unspecified · fixed in 11.2
- Apple macOS
From unspecified · fixed in 12.5
- Apple macOS
From unspecified · fixed in 2021
References 4
support.apple.com
Questions about CVE-2021-30869
What does this mean?
A type confusion issue was addressed with improved state handling. Apple's impact statement says a malicious application may be able to execute arbitrary code with kernel privileges.Source: support.apple.com
Am I affected, and how do I check?
Apple lists iOS and iPadOS as fixed in 14.4, and macOS as fixed in 11.2, 12.5, and a release listed only as 2021. To check a device, look at the version under Settings > General > About on iOS or iPadOS, or About This Mac on macOS.Source: support.apple.com
What should I do about it?
Install the fixed release for the affected product, as listed in Apple's advisory: 14.4 or later for iOS and iPadOS, and 11.2 or 12.5 or later for macOS. The advisory also names iOS 12.5.5 as a fix.Source: support.apple.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2021-11-03, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data