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PatchSiren cyber security CVE debrief

CVE-2025-43289 Apple CVE debrief

A logic validation flaw in macOS allows malicious applications to bypass access controls and read sensitive user data. Apple patched this in macOS Sequoia 15.7, macOS Sonoma 14.8, and macOS Tahoe 26. No CVSS score has been assigned by NVD as of the CVE publication date (2026-05-26). The vulnerability is not listed in CISA KEV.

Vendor
Apple
Product
macOS
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-26
Original CVE updated
2026-07-23
Advisory published
2026-05-26
Advisory updated
2026-07-23

Who should care

macOS system administrators, security operations centers (SOCs), and organizations with managed Apple endpoints.

Technical summary

The vulnerability stems from insufficient validation logic in macOS access control mechanisms. A malicious application can exploit this to access sensitive user data outside its intended sandbox boundaries. Apple addressed the issue through improved validation routines in three concurrent macOS releases.

Defensive priority

high

Recommended defensive actions

  • Apply Apple security updates to macOS Sequoia 15.7, macOS Sonoma 14.8, or macOS Tahoe 26 as applicable.
  • Review application permissions and code signing requirements for installed software.
  • Monitor for unauthorized data access attempts via endpoint detection and response (EDR) tooling.

Evidence notes

Apple security advisory links reference three distinct macOS update pages (125110, 125111, 125112) corresponding to the three fixed versions. Vendor identification as Apple is inferred from reference domain and source email; confidence is low due to lack of explicit vendor field in NVD record.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-43289 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-43289

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-43289 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-43289

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.