Is CVE-2026-28928 being actively exploited?

CVE-2026-28928 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2026-28928?

CVE-2026-28928 has a CVSS 3.1 base score of 9.8 (CRITICAL).

CVE-2026-28928

CRITICAL · CVSS 9.8EPSS 0.6%EU EUVD

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination.

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-416
EPSS score: 0.6% (47th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2026-49499)
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-2026-49499 in the EU Vulnerability Database. Last updated in EUVD on July 28, 2026.

View on the EU Vulnerability Database

Affected products

apple / ipados
apple / iphone os
apple / macos
apple / tvos
apple / watchos

Certified products that may be affected

20 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 iOS 18: iPhone - Apple Inc. - Common Criteria CCEVS-VR-VID-11623-2025 - active
Apple iPadOS 18: iPad - Apple Inc. - Common Criteria CCEVS-VR-VID-11624-2025 - active
Strong Customer Authentication for Apple Pay on Apple Watch Series 10 with S10 running watchOS 11.4(watchOS 11.4 (build 22T251)) (ANSSI-CC-2025/35) - Apple Inc. - Common Criteria ANSSI-CC-2025/35 - active

See all 20 in the Security Certifications Explorer.

References

https://support.apple.com/en-us/128066(Release Notes, Vendor Advisory)
https://support.apple.com/en-us/128067(Release Notes, Vendor Advisory)
https://support.apple.com/en-us/128068(Release Notes, Vendor Advisory)
https://support.apple.com/en-us/128069(Release Notes, Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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