CVE-2022-32908 in macOS
Summary
by MITRE • 09/21/2022
A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Monterey 12.6, iOS 15.7 and iPadOS 15.7, iOS 16, macOS Big Sur 11.7. A user may be able to elevate privileges.
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Analysis
by VulDB Data Team • 06/05/2026
This memory corruption vulnerability represents a critical security flaw that emerged in Apple's operating systems, specifically affecting macOS and iOS platforms. The issue stems from inadequate input validation mechanisms that fail to properly sanitize user-provided data before processing. According to industry standards, this vulnerability aligns with CWE-121, which describes "Stack-based Buffer Overflow" conditions where insufficient bounds checking allows attackers to overwrite adjacent memory locations. The flaw exists in the kernel-level components of Apple's operating systems, making it particularly dangerous as it operates at the core of system security. The vulnerability enables attackers to manipulate memory structures in ways that could lead to arbitrary code execution and privilege escalation. Security researchers identified that the issue manifests when the system processes malformed input through various kernel interfaces, potentially allowing malicious actors to exploit the memory corruption for unauthorized system access.
The operational impact of this vulnerability extends beyond simple memory corruption, as it creates pathways for privilege escalation attacks that could compromise entire system architectures. Attackers exploiting this flaw could potentially transition from standard user privileges to root-level access, effectively gaining complete control over affected devices. The vulnerability affects multiple Apple platforms including macOS Monterey 12.6, iOS 15.7, iPadOS 15.7, and iOS 16, indicating a widespread exposure across Apple's ecosystem. This type of vulnerability falls under the ATT&CK framework's privilege escalation tactics, specifically targeting techniques that leverage system-level memory corruption to gain elevated privileges. The exploitation process typically involves crafting specific inputs that trigger the memory corruption, then leveraging the corrupted memory state to execute malicious code with higher privileges than initially granted.
Apple's response to this vulnerability involved implementing enhanced input validation mechanisms that prevent malformed data from reaching vulnerable kernel components. The security patches released with macOS Big Sur 11.7, macOS Monterey 12.6, iOS 15.7, and iOS 16 address the root cause by strengthening boundary checks and input sanitization routines. Organizations should prioritize immediate deployment of these security updates across all affected systems, as the vulnerability represents a significant risk to enterprise environments. The mitigation strategy should include comprehensive testing of the patches in controlled environments before full deployment, ensuring that the updates do not introduce compatibility issues with existing applications or system configurations. Security teams should also implement monitoring for potential exploitation attempts, as indicators of compromise may include unusual system behavior, unauthorized privilege changes, or unexpected network activity from compromised devices. The vulnerability demonstrates the critical importance of maintaining up-to-date security patches and implementing layered defense strategies to protect against kernel-level exploits that could compromise entire computing environments.