A type confusion issue was addressed with improved checks.
Affects Apple iOS, iPadOS, Safari and macOS before the fixed releases listed in the advisory; CVSS rates it High (8.8). Fixed in iOS 16.3.1 and iPadOS 16.3.1.
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 16.3, 13.2, 15.7
- 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's iOS, iPadOS, macOS, and Safari are affected. Processing maliciously crafted web content could allow an attacker to run arbitrary code on the 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 checks. This issue is fixed in iOS 15.7.4 and iPadOS 15.7.4, iOS 16.3.1 and iPadOS 16.3.1, macOS Ventura 13.2.1, Safari 16.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
Timeline
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CVE published
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
Affected versions
- Apple iOS and iPadOS
From unspecified · fixed in 16.3
- Apple Safari
From unspecified · fixed in 16.3
- Apple macOS
From unspecified · fixed in 13.2
- Apple iOS and iPadOS
From unspecified · fixed in 15.7
References 4
support.apple.com
Questions about CVE-2023-23529
What does this mean?
The bug is a type confusion issue, where code treats data as a different type than it really is. Apple fixed it with improved checks. The advisory says processing maliciously crafted web content may lead to arbitrary code execution.Source: support.apple.com
Am I affected, and how do I check?
Affected products are iOS and iPadOS before 16.3 and 15.7, Safari before 16.3, and macOS before 13.2. Compare the installed version of each product with these fixed versions to see where it stands.Source: support.apple.com
What should I do about it?
Update iOS or iPadOS to 16.3.1 or later, and update macOS to 13.2 or later and Safari to 16.3 or later.Source: support.apple.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2023-02-14, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data