CVE-2024-54494 is a race condition vulnerability identified in Apple iOS, iPadOS, macOS, tvOS, visionOS, and watchOS platforms. The issue allows an attacker to create a memory mapping that is intended to be read-only but can be manipulated to become writable. This undermines the memory protection mechanisms that prevent unauthorized code or data modification, potentially enabling integrity violations such as code injection or tampering with critical data structures. The root cause is a race condition that was mitigated by Apple through additional validation checks in the affected operating systems, with patches released in iOS 18.2, iPadOS 18.2, iPadOS 17.7.3, macOS Sequoia 15.2, macOS Sonoma 14.7.2, macOS Ventura 13.7.2, tvOS 18.2, visionOS 2.2, and watchOS 11.2. The CVSS v3.1 base score is 5.9, reflecting medium severity, with an attack vector of network, high attack complexity, no privileges required, no user interaction, and impact limited to integrity. No known exploits have been reported in the wild, but the vulnerability could be leveraged by remote attackers to alter memory contents, potentially leading to unauthorized code execution or system manipulation. The vulnerability is classified under CWE-362 (Race Condition).

The primary impact of CVE-2024-54494 is on the integrity of affected Apple operating systems. An attacker exploiting this vulnerability could write to memory regions that should be read-only, potentially enabling code injection, privilege escalation, or bypassing security controls. This could lead to unauthorized modification of system or application data, undermining trust in the device's operation. Although confidentiality and availability are not directly impacted, the integrity breach could facilitate further attacks that compromise sensitive information or disrupt services. Organizations relying on Apple devices for critical operations, secure communications, or sensitive data processing could face increased risk of targeted attacks or malware persistence. The medium severity and high attack complexity suggest that exploitation requires sophisticated techniques, but the lack of required privileges or user interaction lowers the barrier for remote attackers. The absence of known exploits currently reduces immediate risk but does not preclude future exploitation attempts.

To mitigate CVE-2024-54494, organizations and users should promptly update all affected Apple devices to the patched OS versions: iOS 18.2, iPadOS 18.2 and 17.7.3, macOS Sequoia 15.2, Sonoma 14.7.2, Ventura 13.7.2, tvOS 18.2, visionOS 2.2, and watchOS 11.2. Beyond patching, organizations should implement strict device management policies to ensure timely deployment of updates across all Apple endpoints. Employing runtime protections such as memory integrity checks and monitoring for anomalous memory access patterns can help detect exploitation attempts. Network-level defenses should be configured to limit exposure of Apple devices to untrusted networks, reducing the attack surface. Security teams should monitor threat intelligence feeds for any emerging exploit code or attack campaigns targeting this vulnerability. Additionally, conducting regular security audits and penetration testing on Apple device fleets can help identify any residual risks. For high-security environments, consider restricting the use of vulnerable OS versions until fully patched and validated.