Strix
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CVE-2026-43655

HIGHCVSS 7.3/10EPSS 0.27%

Last modified

CVE-2026-43655 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

Description

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. An app may be able to cause unexpected system termination or read kernel memory.

Metrics

CVSS 3.1
7.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS Probability
0.27%

19.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
AppleIpados< 26.5
AppleIphone Os< 26.5
AppleMacos>= 26.0, < 26.5
AppleTvos< 26.5
AppleWatchos< 26.5

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-43655?
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. An app may be able to cause unexpected system termination or read kernel memory.
How severe is CVE-2026-43655?
CVE-2026-43655 has a CVSS score of 7.3/10 (HIGH severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.
How do I fix CVE-2026-43655?
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.

Are you affected by CVE-2026-43655?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST