CVE-2025-43236 is a type confusion vulnerability in Apple macOS that was addressed with improved memory handling. The severity level for this vulnerability is classified as low, with a CVSS score of 3.3. This vulnerability allows an attacker to potentially cause unexpected app termination. It is crucial for organizations utilizing macOS to recognize the real-world risk context associated with this vulnerability, as it could disrupt operations if not addressed.
The vulnerability affects macOS versions prior to 15.6, including 13.0 to 13.7.6, 14.0 to 14.7.6, and 15.0 to 15.5. Organizations should prioritize patching immediately, especially since this vulnerability has been officially analyzed and disclosed by Apple. The publication date of the CVE is April 2, 2026, highlighting the urgency of addressing this issue.
As of now, there are no known exploits in the wild, but organizations should remain vigilant. The exploitation status indicates that this CVE is not classified within the Known Exploited Vulnerabilities (KEV) list, which suggests it is not actively being targeted. However, the potential for exploitation remains, and defensive measures should be taken seriously.
In summary, organizations leveraging macOS must be aware of CVE-2025-43236, its low severity, and the implications it may hold if left unaddressed. Immediate action to patch affected systems should be prioritized to mitigate potential risks.
Vulnerability Details
The official CVE description states that a type confusion issue was addressed with improved memory handling in macOS. This vulnerability allows for potential unexpected app termination. The vulnerability type falls under the category of type confusion, with a CVSS score of 3.3, indicating a low severity level. This vulnerability affects Apple’s macOS, specifically versions 13.0 to 13.7.6, 14.0 to 14.7.6, and 15.0 to 15.5, as detailed in the description provided by Apple.
Technical Analysis
The root cause of CVE-2025-43236 is a type confusion issue that stems from improper memory handling within the macOS environment. The attack vector for this vulnerability is local, meaning that an attacker must have physical access to the device to exploit it. The attack complexity is classified as low, requiring no special privileges to execute the attack, but user interaction is required, which may involve the attacker persuading the user to execute a malicious application.
In terms of impact, the confidentiality and integrity impact is none, while the availability impact is low. This means the exploitation of this vulnerability could lead to unexpected application crashes, thereby affecting the availability of the application but not compromising the confidentiality or integrity of data.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2025-43236 is relatively low, given its local attack vector and the requirement for user interaction. However, organizations should not underestimate the impact of unexpected application terminations, which may disrupt workflows and degrade user experience. The urgency for organizations to address this vulnerability is moderate; while it is not actively exploited, it is crucial to patch affected systems to prevent potential exploitation.
The CVSS score of 3.3 indicates a low severity, but organizations should still consider the potential blast radius. If exploited, the impact on business operations could be significant, especially in environments where uptime and application availability are critical.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of macOS include all versions prior to 15.6, specifically 13.0 to 13.7.6, 14.0 to 14.7.6, and 15.0 to 15.5. Organizations should ensure they upgrade to the latest version of macOS to mitigate this vulnerability.
Mitigation & Remediation
To remediate CVE-2025-43236, organizations are advised to patch their systems with the latest macOS versions: Sequoia 15.6, Sonoma 14.7.7, or Ventura 13.7.7. If immediate patching is not feasible, organizations should review their application configurations and limit user interactions with potentially vulnerable applications. Implementing network controls to restrict access to sensitive applications can also help mitigate risks.
Continuous penetration testing can be beneficial in identifying any lingering vulnerabilities in the system after patching.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor application logs for unexpected terminations and analyze system behaviors for anomalies. Behavioral analysis can help identify any unauthorized attempts to exploit this weakness in the memory handling of macOS.
AppSecure Threat Intelligence Insight
CVE-2025-43236 exemplifies the ongoing challenges in ensuring application security, particularly with memory management vulnerabilities. As organizations adapt to evolving threats, the need for robust security practices becomes imperative. Regular updates and adherence to security protocols will be essential in mitigating similar vulnerabilities in the future.
Penetration testing methodology should be incorporated into an organization’s security strategy to proactively address vulnerabilities like this.
A vulnerability management program helps organizations maintain a strong security posture and respond effectively to emerging threats.
API security testing is another critical area to focus on, especially as organizations continue to leverage cloud and mobile technologies.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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