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PatchSiren cyber security CVE debrief

CVE-2025-43339 Apple CVE debrief

CVE-2025-43339 is a MEDIUM-severity access issue vulnerability addressed by Apple in macOS Tahoe 26.1. A malicious app may be able to access sensitive user data. The issue was publicly disclosed on  [**cve-org**](https://www.cve.org/CVERecord?id=CVE-2025-43339)  and further details can be found on  [**nvd**](https://nvd.nist.gov/vuln/detail/CVE-2025-43339).

Vendor
Apple
Product
macOS
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-11
Original CVE updated
2026-06-12
Advisory published
2026-06-11
Advisory updated
2026-06-12

Who should care

Users of macOS Tahoe 26.1 and administrators of affected systems should apply the update to prevent potential exploitation.

Technical summary

The vulnerability, with a CVSS score of 5.5, involves an access issue that was addressed with additional sandbox restrictions. This issue is fixed in macOS Tahoe 26.1.

Defensive priority

MEDIUM

Recommended defensive actions

  • Apply the update to macOS Tahoe 26.1 as soon as possible.
  • Ensure that all users of affected systems are informed and updated.

Evidence notes

The CVE was published on 2026-06-11T19:16:33.930Z and modified on 2026-06-12T12:37:08.883Z. The vulnerability has been analyzed and details can be found in the  [**source-item**](https://services.nvd.nist.gov/rest/json/cves/2.0?lastModStartDate=2026-06-09T12%3A30%3A41.000Z&lastModEndDate=2026-06-13T17%3A00%3A54.000Z).

Sources and references

Verified primary and authoritative sources

  • CVE-2025-43339 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-43339

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

  • CVE-2025-43339 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-43339

    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.