# CVE-2024-40853: Security feature bypass in iOS and iPadOS

> An attacker can bypass lock screen restrictions to enable Auto-Answer Calls via Siri on iOS and iPadOS devices.

- **Severity:** Medium 5.9 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 Oct 2024
- **Updated:** 2 Apr 2026
- **Also known as:** GHSA-3cp8-2w4x-m8xp

## What is CVE-2024-40853?

CVE-2024-40853 is a medium-severity vulnerability in Apple Ipados, published on 28 Oct 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

This issue was addressed by restricting options offered on a locked device. This issue is fixed in iOS 18 and iPadOS 18. An attacker may be able to use Siri to enable Auto-Answer Calls.

## Which versions are affected by CVE-2024-40853?

It affects 2 products.


Products: Apple Ipados, Apple Iphone Os.

## How do I fix CVE-2024-40853?

No fix has been published for CVE-2024-40853 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-40853 being exploited?

There is no known exploitation of CVE-2024-40853 in the wild and no public exploit code.

## Other vulnerabilities in Apple Ipados

- [CVE-2025-43300](https://insights.sbomify.com/CVE-2025-43300/): Apple iOS, iPadOS, and macOS Out-of-Bounds Write (critical 10.0, exploited in the wild)
- [CVE-2025-24201](https://insights.sbomify.com/CVE-2025-24201/): Apple Multiple Products WebKit Out-of-Bounds Write (critical 10.0, exploited in the wild)
- [CVE-2025-24085](https://insights.sbomify.com/CVE-2025-24085/): Apple Multiple Products Use-After-Free (critical 10.0, exploited in the wild)
- [CVE-2025-31200](https://insights.sbomify.com/CVE-2025-31200/): Apple Multiple Products Memory Corruption (critical 9.8, exploited in the wild)
- [CVE-2025-31201](https://insights.sbomify.com/CVE-2025-31201/): Apple Multiple Products Arbitrary Read and Write (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-40853 and fix it if it is affected.

What it is: CVE-2024-40853 is a medium-severity vulnerability in Apple Ipados, published on 28 Oct 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-40853 in the wild and no public exploit code.

Affected product: Apple Ipados. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2024-40853/ (Markdown: https://insights.sbomify.com/CVE-2024-40853/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-40853
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-40853
- OSV: https://osv.dev/vulnerability/CVE-2024-40853

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-40853/
Summaries are generated and may contain mistakes; the official description above is the record.