AppleCVE-2026-43788

Apple macOS: integer overflow

CVE-2026-43788 · Published Sep 14, 2026 · updated Sep 15, 2026

Medium6.6

Fix: upgrade to 27 or later

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27. Processing a maliciously crafted file may lead to a denial-of-service or potentially disclose memory contents.

Affected versions

Package	Affected	Fixed in
macOS Product	< 27	27

Details and references

CVSS 3.1: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H
Severity from: CISA (its enrichment of the CVE record)
Weakness: CWE-190

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