HarborGuard / CVE
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HIGHCVE-2026-20620Published Modified CNA apple

CVE-2026-20620: An out-of-bounds read issue was addressed with improved input validation

An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3. An attacker may be able to cause unexpected system termination or read kernel memory.

Metrics

CVSS v3.1
7.7
Severity
HIGH
Fixed in
14.8.4
Affected Products
1

Fix available

14.8.415.7.426.3
Affected packages
  • Apple / macOS
    < 14.8.4 (from 0) · < 15.7.4 (from 0) · < 26.3 (from 0)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H