Multiple vulnerabilities in macOS SMBClient, identified as CVE-2025-24269 and CVE-2025-24235, and an unassigned flaw, allow attackers to execute arbitrary code remotely and crash systems. These flaws enable remote kernel heap overflow, authentication bypass, and privilege escalation, which can lead to unauthorized process termination and system crashes. Apple has released patches to address these issues, but users should update immediately and disable SMB services as a mitigation measure.
Source: https://cybersecuritynews.com/macos-smbclient-vulnerability/
TPRM report: https://scoringcyber.rankiteo.com/company/apple
"id": "app631070825",
"linkid": "apple",
"type": "Vulnerability",
"date": "7/2025",
"severity": "75",
"impact": "",
"explanation": "Attack threatening the organization’s existence"
{'affected_entities': [{'industry': 'Technology',
'name': 'Apple',
'type': 'Company'}],
'attack_vector': 'Network',
'description': 'Multiple vulnerabilities in macOS SMBClient that could allow '
'attackers to execute arbitrary code remotely and crash '
'systems. The vulnerabilities affecting the SMB filesystem '
'client used for mounting remote file shares represent a '
'significant security risk, as SMB has been the preferred file '
'sharing protocol since macOS Big Sur. Two of the flaws have '
'been assigned CVE identifiers (CVE-2025-24269 and '
'CVE-2025-24235), while the third remains unassigned.',
'impact': {'operational_impact': 'System crashes, process termination',
'systems_affected': 'macOS systems using SMBClient'},
'lessons_learned': 'Regular security audits, principle of least privilege, '
'disable unnecessary services',
'motivation': 'Remote code execution, system compromise, memory corruption, '
'unauthorized process termination, system crashes',
'post_incident_analysis': {'corrective_actions': 'Comprehensive validation of '
'compress_len parameter, '
'proper memory '
'initialization, '
'entitlement-based access '
'controls',
'root_causes': 'Insufficient validation of '
'compress_len parameter, '
'uninitialized memory, lack of '
'permission checks'},
'recommendations': 'Apply patches immediately, disable SMB services as '
'mitigation, prioritize testing and deployment of fixes',
'response': {'containment_measures': 'Disable SMB file sharing services',
'enhanced_monitoring': 'Regular security audits',
'remediation_measures': 'Apply patches through macOS system '
'updates'},
'title': 'Multiple vulnerabilities in macOS SMBClient',
'type': 'Vulnerability',
'vulnerability_exploited': ['CVE-2025-24269', 'CVE-2025-24235', 'Unassigned']}