CVE-2025-30430 is a critical security vulnerability identified in Apple’s password autofill mechanism across iOS, iPadOS, macOS Sequoia, visionOS, and watchOS platforms. The flaw arises from improper state management in the autofill feature, which causes the system to fill in stored passwords even after the user has failed authentication. This bypass effectively allows an attacker to retrieve sensitive credentials without needing to authenticate successfully or interact with the device. The vulnerability is classified under CWE-287 (Improper Authentication), highlighting that the system does not correctly verify user identity before autofilling passwords. The CVSS v3.1 score of 9.8 reflects the high severity, with an attack vector that is network-based (AV:N), requiring no privileges (PR:N), no user interaction (UI:N), and impacting confidentiality, integrity, and availability (C:H/I:H/A:H). The flaw affects all versions prior to iOS 18.4, iPadOS 18.4, macOS Sequoia 15.4, visionOS 2.4, and watchOS 11.4, where Apple has implemented improved state management to fix the issue. Although no known exploits are currently reported in the wild, the potential for credential theft is significant given the widespread use of Apple devices and the critical nature of password autofill functionality. This vulnerability could be leveraged by remote attackers to gain unauthorized access to user accounts and sensitive information, facilitating further attacks such as identity theft, unauthorized transactions, or lateral movement within networks.

The impact of CVE-2025-30430 is severe for organizations worldwide, especially those relying heavily on Apple devices for accessing sensitive systems and data. Unauthorized autofill of passwords after failed authentication compromises the confidentiality of stored credentials, potentially exposing corporate accounts, personal data, and access to critical infrastructure. Integrity and availability are also at risk as attackers could manipulate or disrupt authentication processes. This vulnerability enables remote attackers to bypass authentication controls without user interaction, increasing the likelihood of large-scale credential theft and subsequent exploitation. Organizations could face data breaches, financial losses, reputational damage, and regulatory penalties. The risk is heightened in sectors such as finance, healthcare, government, and technology, where Apple devices are prevalent and sensitive data is handled. Additionally, the flaw could facilitate advanced persistent threats (APTs) and espionage campaigns targeting high-value individuals and organizations.

To mitigate CVE-2025-30430, organizations must prioritize immediate deployment of Apple’s security updates: iOS 18.4, iPadOS 18.4, macOS Sequoia 15.4, visionOS 2.4, and watchOS 11.4 or later. Beyond patching, organizations should enforce multi-factor authentication (MFA) to reduce reliance on password autofill and limit the impact of credential exposure. Disable password autofill features on managed devices where feasible, especially in high-security environments. Implement endpoint detection and response (EDR) solutions to monitor for unusual autofill or authentication bypass behaviors. Conduct user training to raise awareness about the risks of autofill and encourage manual password entry for sensitive applications. Review and tighten access controls and audit logs to detect unauthorized access attempts. For critical systems, consider using hardware security modules or secure enclave features to protect credentials. Regularly review device compliance and update policies to ensure timely patch management and vulnerability remediation.