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macOSOperating system · Apple

CVE-2026-64744

MEDIUM · 5.5 CVSS v3.1 Published 2026-07-27
Fix available
A fix is available. Upgrade to 14.8.8 / 15.7.8 or later.
See remediation →
58/100
Remediation priority · Elevated
No privileges 3 weeks old

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An information leakage was addressed with additional validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to disclose kernel memory.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-200

The application discloses data — error detail, internal paths, tokens, or other users' records — to someone who shouldn't see it. On its own it can look minor, but it hands attackers the map they need for a larger attack. Remediation is about minimising what's returned and enforcing authorization on every piece of data.

General guidance for the information exposure class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
macOSOperating system
Affected:>= 14.0, < 14.8.8>= 15.0, < 15.7.8>= 26.0, < 26.6

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

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

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 14.8.8 / 15.7.8 / 26.6 or later
Fixed in 14.8.815.7.826.6
Recommended fix High confidence

macOS Sonoma 14.8.8 or macOS Sequoia 15.7.8 or macOS Tahoe 26.6 (depending on current major version)

  1. Identify the current macOS version on affected systems by clicking the Apple menu > About This Mac
  2. Determine the appropriate upgrade path based on current version: macOS 14.x systems need 14.8.8, macOS 15.x systems need 15.7.8, macOS 26.x systems need 26.6
  3. Back up critical data using Time Machine or other backup solution before applying the update
  4. Open System Settings > General > Software Update
  5. Click Check for Update or allow automatic updates to download and install the appropriate macOS version (14.8.8, 15.7.8, or 26.6)
  6. Restart the system when prompted to complete the installation
Caveat Minor point releases typically have minimal breaking changes; verify critical applications are compatible with the new minor version before broad deployment

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $900. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-64744 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data