CVE-2025-30440
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 · uneditedThe issue was addressed with improved checks. This issue is fixed in macOS Sequoia 15.5, macOS Sonoma 14.7.6, macOS Ventura 13.7.6. An app may be able to bypass ASLR.
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 confidenceA vulnerability in macOS allows an application to bypass Address Space Layout Randomization (ASLR), a fundamental memory protection mechanism. The fix involves improved checks to prevent this bypass. The medium severity suggests the exploitation may have specific constraints or limitations.
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< 13.7.6>= 14.0, < 14.7.6>= 15.0, < 15.5CVSS 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
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
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.
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Check installed macOS versionRun `sw_vers -productVersion` in Terminal to display the exact macOS version number (for example, 14.6.1 or 15.4)Affected if The version shown is less than 13.7.6, or is 14.0 through 14.7.5, or is 15.0 through 15.4
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Confirm macOS release name (optional)Run `sw_vers -productVersionExtra` or check System Settings > About to see if the version corresponds to Ventura (13.x), Sonoma (14.x), or Sequoia (15.x)Affected if The release is Ventura and version < 13.7.6, Sonoma and version < 14.7.6, or Sequoia and version < 15.5
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Verify system is not patchedRun `defaults read /System/Library/CoreServices/SystemVersion.plist ProductVersion` and compare against the fixed versions: 13.7.6, 14.7.6, or 15.5Affected if The version string is lower than any of these three fixed versions
If the system runs any macOS version below 13.7.6 (Ventura), below 14.7.6 (Sonoma), or below 15.5 (Sequoia), then the ASLR bypass vulnerability is present.
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 · scoped13.7.614.7.615.5
Update affected macOS systems to macOS Sequoia 15.5, Sonoma 14.7.6, or Ventura 13.7.6 to apply the security fix.
macOS Ventura 13.7.6, macOS Sonoma 14.7.6, or macOS Sequoia 15.5
- Identify the current macOS version by clicking the Apple menu and selecting About This Mac
- If running macOS Ventura (13.x), upgrade to version 13.7.6
- If running macOS Sonoma (14.x), upgrade to version 14.7.6
- If running macOS Sequoia (15.x), upgrade to version 15.5
- To upgrade, go to System Settings > General > Software Update and install the available update
- Restart the system after the update completes
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Testing1.0 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 $1,200.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-30440 — 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-2025-30440 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
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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
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