What’s Vulnerable › Vulnerabilities

CVE-2026-84519

• Severity: medium (CVSS 6.5 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: 2026-09-14 · updated 2026-10-26
• Weakness: CWE-787

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Mounting a disk image with maliciously crafted files may lead to unexpected system termination.

Affected products

• Apple iPadOS: before 26.7 — fixed in 26.7
• Apple Iphone Os: before 26.7 — fixed in 26.7
• Apple macOS: from 15.0 before 15.8; from 26.0 before 26.7 — fixed in 15.8, 26.7
• Apple iOS and iPadOS: before 26.7; before 27 — fixed in 26.7, 27
• Apple macOS: before 15.8; before 26.7; before 27 — fixed in 15.8, 26.7, 27

How to fix

Upgrade to a fixed version: Apple iPadOS 26.7; Apple Iphone Os 26.7; Apple macOS 15.8, 26.7; Apple iOS and iPadOS 26.7, 27; Apple macOS 15.8, 26.7, 27. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/149034
• https://support.apple.com/en-us/149035
• https://support.apple.com/en-us/149041
• https://support.apple.com/en-us/149042
• https://support.apple.com/en-us/149043

Get alerted when CVE-2026-84519 or the next vulnerability affects your stack