CVE-2026-86929
highAn out-of-bounds write issue was addressed with improved bounds checking.
Vendor / product: Apple — macos
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Processing a maliciously crafted file may lead to arbitrary code execution.
CVSS
8.8
8.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
Timeline (UTC)
Published: 2026-10-26 21:20
Modified: 2026-10-28 15:31
NVD status: Analyzed
Last synced 14 hours ago
Verified against the source API 2026-10-28 16:01 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
apple / macos ≥15.0 <15.8.2, ≥26.0 <26.7.2
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://support.apple.com/en-us/149035
Vendor advisory: https://support.apple.com/en-us/149522
Vendor advisory: https://support.apple.com/en-us/149523
References
- https://support.apple.com/en-us/149035 product-security@apple.com
- https://support.apple.com/en-us/149522 product-security@apple.com
- https://support.apple.com/en-us/149523 product-security@apple.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-28 16:01 UTC · record ↗