CVE-2023-40409 in macOS
Summary
by MITRE • 09/27/2023
The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.6, tvOS 17, macOS Monterey 12.7, watchOS 10, iOS 17 and iPadOS 17. An app may be able to execute arbitrary code with kernel privileges.
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Analysis
by VulDB Data Team • 11/06/2025
This vulnerability represents a critical memory handling flaw that could enable malicious applications to escalate privileges and execute arbitrary code with kernel-level permissions. The issue was identified within the operating system's memory management subsystem where improper handling of memory allocations and deallocations created potential attack vectors for privilege escalation. The vulnerability affects multiple Apple operating systems including macOS Ventura 13.6, tvOS 17, macOS Monterey 12.7, watchOS 10, iOS 17, and iPadOS 17, indicating a widespread impact across the Apple ecosystem. From a cybersecurity perspective, this represents a significant concern as kernel-level privilege escalation allows attackers to bypass system security controls and gain unrestricted access to system resources.
The technical nature of this vulnerability aligns with common memory corruption issues that fall under CWE-122, which describes improper restriction of operations within a memory buffer. Attackers could potentially exploit this flaw by crafting malicious applications that manipulate memory structures in ways that trigger the improper handling behavior. The vulnerability's classification as a privilege escalation issue means that an attacker with limited user-level access could leverage this flaw to gain root or kernel-level privileges, fundamentally compromising system security. This type of vulnerability is particularly dangerous because it operates at the lowest level of system operation where security controls are typically most robust.
The operational impact of this vulnerability extends beyond individual device compromise to potentially affect entire enterprise environments where Apple devices are deployed. Organizations using Apple products for critical operations face significant risk as attackers could use this vulnerability to establish persistent access, exfiltrate sensitive data, or deploy additional malware. The fact that this vulnerability affects multiple operating systems including mobile, desktop, and television platforms increases the attack surface considerably. Security teams must consider that an attacker could potentially use this vulnerability across different device types within the same organization, making it a particularly concerning threat vector.
Mitigation strategies should prioritize immediate deployment of the available security updates from Apple, which address the memory handling issues in the affected versions. System administrators should implement comprehensive monitoring for suspicious privilege escalation attempts and unusual memory allocation patterns that could indicate exploitation attempts. The remediation process should include verification that all affected devices have been updated to the patched versions, with particular attention to legacy systems that may not have received automatic updates. Additionally, organizations should conduct vulnerability assessments to identify any potential exploitation attempts and implement network monitoring to detect unusual activity that might indicate exploitation of this or similar vulnerabilities. The ATT&CK framework would classify this vulnerability under privilege escalation techniques, specifically targeting T1068 which involves exploiting legitimate credentials and system access to gain higher privileges.