CVE-2026-43812

CriticalCVSS 9.8/10Last modified Aug 17, 2026

Description

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6. An app may be able to cause unexpected system termination.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jul 27, 2026
Last modified
Aug 17, 2026
NVD status
Modified

Related CVEs from 2026

CVE-2026-438137.1A validation issue was addressed with improved input sanitization. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 2CVE-2026-438149.8A use after free issue was addressed with improved memory management. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOCVE-2026-438158.8A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS TahoeCVE-2026-438165.5An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6,CVE-2026-438175.5An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 2CVE-2026-438188.8An integer overflow was addressed with improved input validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOSCVE-2026-438195.5An access issue was addressed with additional sandbox restrictions. This issue is fixed in macOS Tahoe 26.6. An app may be able to access seCVE-2026-438207.7NIOSSLCertificate._subjectAlternativeNames provides access to the raw bytes for a cert's SANs. NIOSSL provides access to a buffer assumed toCVE-2026-438216.5An access issue was addressed with improved access restrictions. This issue is fixed in Safari 26.6, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.CVE-2026-438229.8A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPCVE-2026-438237.5When initializing an RSA public key from DER or PEM bytes throws an error, the EVP_PKEY* is double-freed: first in the catch block, then in CVE-2026-438247.7In Argo CD 3.2.0 before 3.2.11 and 3.3.0 before 3.3.9, ServerSideDiff allows reading cleartext Kubernetes Secret data.
CVE-2026-43812: Critical severity, CVSS 9.8 | Vulnix