CVE-2026-64740

CRITICALCVSS 9.3/10EPSS 0.16%

Last modified

CVE-2026-64740 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. A parsing issue in the handling of directory paths was addressed with improved path validation. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6. EPSS estimates a 0.16% chance of exploitation in the next 30 days.

Description

A parsing issue in the handling of directory paths was addressed with improved path validation. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6. A malicious app may be able to break out of its sandbox.

Metrics

CVSS 3.1
9.3/10

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

EPSS Probability
0.16%

6.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
AppleIpados< 26.6
AppleIphone Os< 26.6
AppleMacos>= 14.0, < 14.8.8
AppleMacos>= 15.0, < 15.7.8
AppleMacos>= 26.0, < 26.6
AppleTvos< 26.6

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-64740?
A parsing issue in the handling of directory paths was addressed with improved path validation. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6. A malicious app may be able to break out of its sandbox.
How severe is CVE-2026-64740?
CVE-2026-64740 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.
How do I fix CVE-2026-64740?
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