CVE-2025-43510 is a high-severity vulnerability affecting multiple Apple products, including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. This vulnerability allows a memory corruption issue, which was addressed with improved lock state checking. Organizations using affected Apple products must understand the implications of this vulnerability and take immediate action to apply patches.
The CVSS score for this vulnerability is 7.8, indicating a high severity level. The risk to organizations includes potential unauthorized access and modification of sensitive information, as a malicious application may cause unexpected changes in memory shared between processes. Therefore, organizations should prioritize patching immediately.
This vulnerability was published on December 12, 2025, and affects several versions of iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. Organizations should assess their systems to determine if they are running affected versions and take necessary actions to mitigate potential risks.
Exploitation status indicates that while there are currently no known exploits in the wild, the vulnerability has been added to the Known Exploited Vulnerabilities (KEV) catalog, which highlights its significance. Organizations must remain vigilant and ensure they apply the necessary updates to safeguard their systems.
The urgency for defenders is critical, as improper handling of this vulnerability could lead to significant security breaches. It is essential for organizations to follow the vendor's guidance and apply the relevant patches as soon as possible.
Vulnerability Details
The vulnerability is characterized as a memory corruption issue, specifically addressed with improved lock state checking. It affects various Apple operating systems, including iOS versions 18.7.2 and 26.1, iPadOS versions 18.7.2 and 26.1, macOS versions Sequoia 15.7.2, Sonoma 14.8.2, Tahoe 26.1, tvOS 26.1, visionOS 26.1, and watchOS 26.1.
The CVSS 3.1 score of 7.8 indicates high severity, categorized under the following metrics: attack vector is local (AV:L), attack complexity is low (AC:L), no privileges are required (PR:N), user interaction is required (UI:R), and the impacts to confidentiality, integrity, and availability are all high (C:H, I:H, A:H).
The Common Weakness Enumeration (CWE) classification for this vulnerability is CWE-667, which relates to improper locking mechanisms.
Technical Analysis
The root cause of CVE-2025-43510 stems from inadequate state checking regarding memory locks, which can be exploited by applications to manipulate memory that should be securely managed. The attack vector is local, meaning that an attacker must have physical or remote access to the device to launch an exploit.
The attack complexity is low, indicating that an attacker can easily exploit this vulnerability without significant effort. No special privileges are required, and user interaction is necessary, making it somewhat easier for an attacker to exploit through social engineering or malicious applications.
The potential impacts on confidentiality, integrity, and availability are all categorized as high. This means that successful exploitation could lead to unauthorized access to sensitive information, modification of data, and disruption of services.
Risk & Impact Analysis
Organizations utilizing affected Apple products are at significant risk. The nature of this vulnerability allows for unauthorized memory manipulation, leading to potential data breaches and operational disruptions. Given the widespread use of Apple's ecosystem, the blast radius could extend across personal, enterprise, and cloud environments.
The urgency for remediation is underscored by the vulnerability's inclusion in the KEV catalog. Organizations must act swiftly to apply the necessary patches and updates to mitigate the risk of exploitation. Failure to do so could result in severe repercussions, including data loss, reputational damage, and regulatory penalties.
Given the CVSS score of 7.8, organizations should prioritize this vulnerability in their patching schedules. The risk posed by potential exploitation of this flaw is considerable, and proactive measures should be taken to secure affected systems.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The affected versions include all versions prior to vendor patch for iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. Specifically, versions 18.7.2 and 26.1 for iOS and iPadOS, 15.7.2 for macOS Sequoia, 14.8.2 for macOS Sonoma, and 26.1 for tvOS, visionOS, and watchOS are impacted.
Mitigation & Remediation
Organizations should apply the latest patches provided by Apple to mitigate this vulnerability. The recommended versions to upgrade to include iOS 18.7.2, iPadOS 18.7.2, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, tvOS 26.1, visionOS 26.1, and watchOS 26.1.
In cases where immediate patching is not possible, organizations should consider implementing additional network controls and monitoring solutions to detect any anomalous activities that may indicate exploitation attempts.
Further guidance can be found in Apple's security advisories. For organizations looking to strengthen their security posture against such vulnerabilities, engaging in penetration testing can provide insights into existing vulnerabilities and help validate remediation measures.
Detection Guidance
Organizations should monitor logs for any indicators of compromise associated with this vulnerability. Behavioral anomalies in application performance may signal exploitation attempts. Additionally, network signatures related to unauthorized access attempts should be established to enhance detection capabilities.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-43510 lies in its potential to enable various attack vectors against Apple products, a trend that has been increasingly observed in recent years. Organizations must recognize the importance of proactive security measures and consider adopting a comprehensive security strategy that includes regular updates and security assessments.
This vulnerability highlights the critical need for timely patch management and continuous monitoring of systems. It serves as a reminder that even widely trusted platforms like Apple's can harbor significant vulnerabilities.
Security teams should take away key lessons from this incident, such as the necessity of maintaining an effective vulnerability management program and incorporating regular penetration testing into their security frameworks.
To further enhance their security posture, organizations can consider engaging in offensive security testing to uncover hidden vulnerabilities that may not be addressed by standard patching practices.
Additionally, organizations should stay informed about emerging vulnerabilities and trends in the cybersecurity landscape to adapt their defenses accordingly.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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