CVE-2025-30457: A malicious app may be able to create symlinks to protected regions of the disk in Apple macOS
This issue was addressed with improved validation of symlinks. This issue is fixed in macOS Ventura 13.7.5, macOS Sequoia 15.4, macOS Sonoma 14.7.5. A malicious app may be able to create symlinks to protected regions of the disk.
AI Analysis
Technical Summary
CVE-2025-30457 is a critical security vulnerability identified in Apple macOS operating systems, where a malicious application can create symbolic links (symlinks) pointing to protected regions of the disk. This vulnerability stems from inadequate validation during symlink creation, classified under CWE-59 (Improper Link Resolution Before File Access). By exploiting this flaw, an attacker can potentially redirect file operations to sensitive system files or directories that are normally protected, thereby gaining unauthorized access or modifying critical system components. The vulnerability affects multiple macOS versions prior to the patched releases: Ventura 13.7.5, Sequoia 15.4, and Sonoma 14.7.5. The attack vector is network-based with no required privileges or user interaction, making it trivially exploitable remotely or locally by any malicious app. The CVSS v3.1 score of 9.8 indicates a critical severity level, reflecting high impact on confidentiality, integrity, and availability. Although no active exploits have been reported yet, the vulnerability's nature suggests a high risk of exploitation once weaponized. Apple addressed this issue by improving symlink validation to prevent malicious redirection to protected disk regions. The vulnerability's exploitation could lead to privilege escalation, data corruption, or system compromise, severely impacting affected systems.
Potential Impact
For European organizations, the impact of CVE-2025-30457 is significant, especially those relying on macOS for critical operations, including government agencies, financial institutions, and technology firms. Successful exploitation could lead to unauthorized access to sensitive data, disruption of system integrity, and potential denial of service through system instability or corruption. The vulnerability's ability to bypass disk protection mechanisms threatens the confidentiality and integrity of critical files, potentially enabling attackers to implant persistent malware or exfiltrate confidential information. Given the high CVSS score and no requirement for user interaction or privileges, the risk of widespread compromise is elevated. Organizations with remote or network-exposed macOS systems are particularly vulnerable. The threat also extends to macOS-based development environments and endpoint devices, increasing the attack surface. Failure to patch promptly could result in targeted attacks or automated exploitation campaigns, impacting business continuity and regulatory compliance under frameworks like GDPR.
Mitigation Recommendations
European organizations should immediately deploy the macOS updates that address this vulnerability: Ventura 13.7.5, Sequoia 15.4, and Sonoma 14.7.5. Beyond patching, organizations should enforce strict application control policies to limit installation of untrusted or unsigned applications that could exploit this flaw. Implementing endpoint detection and response (EDR) solutions capable of monitoring for unusual symlink creation or file system access patterns can help detect exploitation attempts. Network segmentation and limiting exposure of macOS systems to untrusted networks reduce attack vectors. Regular auditing of file system permissions and integrity checks can identify unauthorized modifications. Security teams should also educate users about the risks of installing unknown software and maintain up-to-date backups to recover from potential compromises. Finally, integrating threat intelligence feeds to monitor for emerging exploits targeting this vulnerability will enhance proactive defense.
Affected Countries
Germany, France, United Kingdom, Netherlands, Sweden, Finland, Denmark, Ireland, Belgium, Switzerland
CVE-2025-30457: A malicious app may be able to create symlinks to protected regions of the disk in Apple macOS
Description
This issue was addressed with improved validation of symlinks. This issue is fixed in macOS Ventura 13.7.5, macOS Sequoia 15.4, macOS Sonoma 14.7.5. A malicious app may be able to create symlinks to protected regions of the disk.
AI-Powered Analysis
Technical Analysis
CVE-2025-30457 is a critical security vulnerability identified in Apple macOS operating systems, where a malicious application can create symbolic links (symlinks) pointing to protected regions of the disk. This vulnerability stems from inadequate validation during symlink creation, classified under CWE-59 (Improper Link Resolution Before File Access). By exploiting this flaw, an attacker can potentially redirect file operations to sensitive system files or directories that are normally protected, thereby gaining unauthorized access or modifying critical system components. The vulnerability affects multiple macOS versions prior to the patched releases: Ventura 13.7.5, Sequoia 15.4, and Sonoma 14.7.5. The attack vector is network-based with no required privileges or user interaction, making it trivially exploitable remotely or locally by any malicious app. The CVSS v3.1 score of 9.8 indicates a critical severity level, reflecting high impact on confidentiality, integrity, and availability. Although no active exploits have been reported yet, the vulnerability's nature suggests a high risk of exploitation once weaponized. Apple addressed this issue by improving symlink validation to prevent malicious redirection to protected disk regions. The vulnerability's exploitation could lead to privilege escalation, data corruption, or system compromise, severely impacting affected systems.
Potential Impact
For European organizations, the impact of CVE-2025-30457 is significant, especially those relying on macOS for critical operations, including government agencies, financial institutions, and technology firms. Successful exploitation could lead to unauthorized access to sensitive data, disruption of system integrity, and potential denial of service through system instability or corruption. The vulnerability's ability to bypass disk protection mechanisms threatens the confidentiality and integrity of critical files, potentially enabling attackers to implant persistent malware or exfiltrate confidential information. Given the high CVSS score and no requirement for user interaction or privileges, the risk of widespread compromise is elevated. Organizations with remote or network-exposed macOS systems are particularly vulnerable. The threat also extends to macOS-based development environments and endpoint devices, increasing the attack surface. Failure to patch promptly could result in targeted attacks or automated exploitation campaigns, impacting business continuity and regulatory compliance under frameworks like GDPR.
Mitigation Recommendations
European organizations should immediately deploy the macOS updates that address this vulnerability: Ventura 13.7.5, Sequoia 15.4, and Sonoma 14.7.5. Beyond patching, organizations should enforce strict application control policies to limit installation of untrusted or unsigned applications that could exploit this flaw. Implementing endpoint detection and response (EDR) solutions capable of monitoring for unusual symlink creation or file system access patterns can help detect exploitation attempts. Network segmentation and limiting exposure of macOS systems to untrusted networks reduce attack vectors. Regular auditing of file system permissions and integrity checks can identify unauthorized modifications. Security teams should also educate users about the risks of installing unknown software and maintain up-to-date backups to recover from potential compromises. Finally, integrating threat intelligence feeds to monitor for emerging exploits targeting this vulnerability will enhance proactive defense.
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Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2025-03-22T00:04:43.720Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69091e1bc28fd46ded869ab1
Added to database: 11/3/2025, 9:26:51 PM
Last enriched: 11/3/2025, 9:34:14 PM
Last updated: 12/20/2025, 5:17:53 PM
Views: 28
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