CVE-2026-84511

HIGHCVSS 7.8/10EPSS 0.20%

Last modified

CVE-2026-84511 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously crafted asset catalog may lead to unexpected process termination.

Metrics

EPSS Probability
0.20%

10.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
AppleIpados< 27.0
AppleIphone Os< 27.0
AppleMacos>= 15.0, < 15.8
AppleMacos>= 26.0, < 26.7
AppleTvos< 27.0
AppleVisionos< 27.0
AppleWatchos< 27.0

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-84511?
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously crafted asset catalog may lead to unexpected process termination.
How severe is CVE-2026-84511?
CVE-2026-84511 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.
How do I fix CVE-2026-84511?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST