CVE-2026-84496
mediumAn 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 27.2, macOS Tahoe 26.7.2. Mounting a maliciously crafted disk image may cause unexpected system termination or corrupt kernel memory.
CVSS
6.5
6.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
Timeline (UTC)
Published: 2026-10-26 21:19
Modified: 2026-10-28 15:39
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 ≥26.0 <26.7.2, ≥27.0 <27.2
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/149521
Vendor advisory: https://support.apple.com/en-us/149522
References
- https://support.apple.com/en-us/149521 product-security@apple.com
- https://support.apple.com/en-us/149522 product-security@apple.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-28 16:01 UTC · record ↗