AI and data stack advisories

Severe, 6 weeks977Projects326

977 severe, 6 weeks · 326 projects

AppleCVE-2026-86981

Apple macOS: out-of-bounds write

Apple

CVE-2026-86981 · Published Oct 20, 2026 · updated Oct 29, 2026

Medium5.5
Fix: upgrade to 15.8 or later (2 fixed versions below)
Apple advisory

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to cause unexpected system termination.

Affected versions

PackageAffectedFixed in
macOS
Product
< 15.815.8
< 26.726.7
Details and references
CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity from
CISA (its enrichment of the CVE record)
Weakness
CWE-787

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