What’s Vulnerable › Vulnerabilities

CVE-2024-40854

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-01-15 · updated 2026-06-17

Description

A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 17.7.1 and iPadOS 17.7.1, iOS 18.1 and iPadOS 18.1, macOS Sequoia 15.1, macOS Sonoma 14.7.1, macOS Ventura 13.7.1. An app may be able to cause unexpected system termination.

Affected products

• Apple iPadOS: before 17.7.1; from 18.0 before 18.1 — fixed in 17.7.1, 18.1
• Apple Iphone Os: before 17.7.1; from 18.0 before 18.1 — fixed in 17.7.1, 18.1
• Apple macOS: before 13.7.1; from 14.0 before 14.7.1 — fixed in 13.7.1, 14.7.1

How to fix

Upgrade to a fixed version: Apple iPadOS 17.7.1, 18.1; Apple Iphone Os 17.7.1, 18.1; Apple macOS 13.7.1, 14.7.1. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/121563
• https://support.apple.com/en-us/121564
• https://support.apple.com/en-us/121567
• https://support.apple.com/en-us/121568
• https://support.apple.com/en-us/121570

Get alerted when CVE-2024-40854 or the next vulnerability affects your stack