CVE-2025-43538 is a security vulnerability identified in Apple’s iOS and iPadOS platforms, as well as related operating systems including watchOS, macOS, and visionOS. The root cause is a logging issue where sensitive user data is not properly redacted before being recorded in system or application logs. This improper data redaction can allow an app to access sensitive information that should otherwise be protected. The vulnerability is categorized under CWE-532, which concerns exposure of sensitive information through logs. Apple has addressed this issue in updates including watchOS 26.2, macOS Sonoma 14.8.3, iOS 18.7.3, iPadOS 18.7.3, and others. The vulnerability does not require user interaction or authentication to be exploited, meaning a malicious or compromised app installed on a device could potentially read sensitive data from logs. Although no known exploits have been reported in the wild, the risk remains significant due to the nature of the data exposure. The affected versions are unspecified but presumably include versions prior to the patched releases. This vulnerability could be leveraged to extract personal information, credentials, or other confidential data, undermining user privacy and security. The broad range of affected Apple operating systems increases the scope of potential impact across consumer and enterprise environments.

For European organizations, the impact of CVE-2025-43538 could be substantial, especially those relying heavily on Apple devices for business operations, communications, and data handling. Sensitive user data exposure could lead to privacy violations, regulatory non-compliance (e.g., GDPR breaches), and reputational damage. Enterprises in sectors such as finance, healthcare, and government are particularly at risk due to the sensitivity of the data they handle. The vulnerability could facilitate insider threats or external attackers who manage to deploy malicious apps within corporate environments. Data leakage through logs could also aid further attacks, such as credential theft or lateral movement within networks. The absence of known exploits provides a window for proactive mitigation, but also means organizations must remain vigilant against emerging threats. The widespread use of Apple devices in Europe, combined with stringent data protection laws, amplifies the potential consequences of this vulnerability.

Organizations should immediately verify that all Apple devices are updated to the patched versions: watchOS 26.2, macOS Sonoma 14.8.3, iOS 18.7.3, iPadOS 18.7.3, and other relevant OS versions. Beyond patching, enterprises should audit installed applications to ensure only trusted apps with minimal permissions are allowed, reducing the risk of malicious apps exploiting the vulnerability. Implement strict mobile device management (MDM) policies to control app installations and monitor app behavior for unusual access to logs or sensitive data. Review and tighten logging configurations to minimize sensitive data capture where possible. Educate users about the risks of installing untrusted apps and encourage prompt updating of devices. Employ endpoint detection and response (EDR) solutions capable of detecting anomalous access to logs or data exfiltration attempts. Finally, maintain an incident response plan that includes steps for handling potential data exposure incidents related to this vulnerability.