CVE-2026-64740: Apple macOS path traversal (CVSS 9.3)

Description

A parsing issue in the handling of directory paths was addressed with improved path 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, tvOS 26.6. A malicious app may be able to break out of its sandbox.

CVSS 3.1 breakdown

Attack vectorLocal

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeChanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Apple iPadOS< 26.6

Apple iPhone OS< 26.6

Apple macOS≥ 14.0 < 14.8.8 · ≥ 15.0 < 15.7.8 · ≥ 26.0 < 26.6

Apple Tvos< 26.6

Remediation

Fixed in

Apple iPadOS≥ 26.6

Apple iPhone OS≥ 26.6

Apple macOS≥ 14.8.8

Apple Tvos≥ 26.6

Patch & vendor advisories

References

https://support.apple.com/en-us/128066Release NotesVendor Advisory
https://support.apple.com/en-us/128067Release NotesVendor Advisory
https://support.apple.com/en-us/128069Release NotesVendor Advisory
https://support.apple.com/en-us/128071Release NotesVendor Advisory
https://support.apple.com/en-us/128072Release NotesVendor Advisory
https://support.apple.com/en-us/148287

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2026-64740 being actively exploited?

CVE-2026-64740 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.21%.

How severe is CVE-2026-64740?

CVE-2026-64740 has a CVSS 3.1 base score of 9.3, rated critical. EPSS estimates a 0.21% probability of exploitation.

Which products are affected by CVE-2026-64740?

Affected products include Apple iPadOS, Apple iPhone OS, Apple macOS, Apple Tvos.

How do I fix CVE-2026-64740?

Upgrade affected software to a fixed version, for example Apple iPadOS 26.6, Apple iPhone OS 26.6, Apple macOS 14.8.8 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-64740 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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