What’s Vulnerable › Vulnerabilities

CVE-2026-43818

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-27 · updated 2026-08-17
• Weakness: CWE-190

Description

An integer overflow was addressed with improved input validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Processing a maliciously crafted image may lead to arbitrary code execution.

Affected products

• Apple iPadOS: before 26.6 — fixed in 26.6
• Apple Iphone Os: before 26.6 — fixed in 26.6
• Apple macOS: from 14.0 before 14.8.8; from 15.0 before 15.7.8; from 26.0 before 26.6 — fixed in 14.8.8, 15.7.8, 26.6

How to fix

Upgrade to a fixed version: Apple iPadOS 26.6; Apple Iphone Os 26.6; Apple macOS 14.8.8, 15.7.8, 26.6. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/128066
• https://support.apple.com/en-us/128067
• https://support.apple.com/en-us/128071
• https://support.apple.com/en-us/128072
• https://support.apple.com/en-us/148287

Get alerted when CVE-2026-43818 or the next vulnerability affects your stack