CVE-2026-43779
A logic issue was addressed with improved restrictions. 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 intercept network connections intended for another process.
Key facts
- CVSS score
- 9.8 (v3.1)
- Severity
- CRITICAL
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
- CWE-284
- EPSS score
- 0.5% (44th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2026-49487)
- Published
- July 27, 2026
- NVD last modified
- July 28, 2026
- Status
- Analyzed
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2026-49487 in the EU Vulnerability Database. Last updated in EUVD on July 28, 2026.
View on the EU Vulnerability DatabaseAffected products
- apple / macos
Certified products that may be affected
10 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Apple macOS 26 Tahoe: FileVault - Apple Inc. - Common Criteria CCEVS-VR-VID-11696-2026 - active
- Apple macOS 26 Tahoe - Apple Inc. - Common Criteria CCEVS-VR-VID-11695-2026 - active
- Apple macOS 15 Sequoia - Apple Inc. - Common Criteria CCEVS-VR-VID-11648-2026 - active
- Strong Customer Authentication for Apple Pay on MacBook Air 2024 with M3running macOS Sequoia 15.4 - Apple Inc. - Common Criteria 2025-11-INF-4674 - active
- Apple macOS 14 Sonoma - Apple Inc. - Common Criteria CCEVS-VR-VID-11584-2025 - active
See all 10 in the Security Certifications Explorer.
References
- https://support.apple.com/en-us/128067(Release Notes, Vendor Advisory)
- https://support.apple.com/en-us/128071(Release Notes, Vendor Advisory)
- https://support.apple.com/en-us/128072(Release Notes, Vendor Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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