CVE-2026-64694
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 · uneditedAn integer overflow was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.
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 · moderate confidenceAn integer overflow vulnerability in macOS kernel/system components allows a malicious application to trigger unexpected system termination (kernel panic/crash). The issue was addressed through improved input validation in macOS Sequoia 15.7.8, Sonoma 14.8.8, and Tahoe 26.6.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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>= 14.0, < 14.8.8>= 15.0, < 15.7.8>= 26.0, < 26.6CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Determine installed macOS versionRun 'sw_vers -productVersion' in Terminal or click Apple menu > About This Mac to view the version numberAffected if The version shown is >= 14.0 and < 14.8.8, or >= 15.0 and < 15.7.8, or >= 26.0 and < 26.6
-
Identify macOS release nameCheck the major version number: 14.x indicates Sonoma, 15.x indicates Sequoia, 26.x indicates TahoeAffected if The release is Sonoma, Sequoia, or Tahoe and falls within the affected version range from step 1
-
Confirm system is unpatchedCompare your exact version (e.g., 14.7.2, 15.5.1, 26.3) against the fixed versions: 14.8.8, 15.7.8, 26.6Affected if Your installed version is lower than the fixed version for your release (14.8.8 for Sonoma, 15.7.8 for Sequoia, 26.6 for Tahoe)
The system is affected if it runs macOS Sonoma 14.0 to 14.8.7, Sequoia 15.0 to 15.7.7, or Tahoe 26.0 to 26.5.
Generated from the published advisory. Verify against your own configuration.
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 · scoped14.8.815.7.826.6
Apply the appropriate macOS security update (Sequoia 15.7.8, Sonoma 14.8.8, or later) to all affected systems. Restrict application execution permissions to trusted sources until patches are applied.
macOS Sonoma 14.8.8 / macOS Sequoia 15.7.8 / macOS Tahoe 26.6 (depending on your current version)
- Check current macOS version by clicking Apple menu > About This Mac
- Back up important data before installing updates
- Open System Settings > General > Software Update
- Click Check for Update and install the available security update
- For macOS Sonoma (14.x): install update to reach 14.8.8 or later
- For macOS Sequoia (15.x): install update to reach 15.7.8 or later
- For macOS Tahoe (26.x): install update to reach 26.6 or later
- Restart the system when prompted to complete the update
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-64694 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-64694 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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.
- 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