Is CVE-2026-28923 in the CISA KEV catalog?

No. CVE-2026-28923 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-28923?

CVE-2026-28923 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2026-28923?

CVE-2026-28923 has an EPSS score of 0.15% (5th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-28923?

Update macOS Sequoia to 15.7.7 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2026-28923

HIGH

8.8

CVSS v3

NVD

Description

A logging issue was addressed with improved data redaction. This issue is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. A malicious app may be able to break out of its sandbox.

CWE-532

How to fix

Remediation Available

macOS SequoiaApple

Fixed in:15.7.7127116

macOS SonomaApple

Fixed in:14.8.7127117

macOS TahoeApple

Fixed in:26.5127115

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

0.15%probability of exploitation in 30 days

5thpercentile

Low risk: more likely to be exploited than 5% of all known CVEs.

References

Vendor Advisory3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-12.