CVE-2022-47965 – This is a macOS kernel memory corruption vulner... (How to Fix)

📋 TL;DR

This is a macOS kernel memory corruption vulnerability that allows malicious applications to execute arbitrary code with kernel privileges. It affects macOS systems before Ventura 13. Attackers could gain complete system control by exploiting this flaw.

💻 Affected Systems

Products:

macOS

Versions: All versions before macOS Ventura 13

Operating Systems: macOS

Default Config Vulnerable: ⚠️ Yes

Notes: Affects all standard macOS installations before Ventura 13

📦 What is this software?

Macos by Apple

macOS is Apple's desktop and laptop operating system powering Mac computers used by millions of professionals, developers, creative professionals, and enterprise users worldwide. Built on a Unix foundation with the Darwin kernel and modern Cocoa frameworks, macOS delivers a seamless ecosystem integr...

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⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with kernel-level persistence, data theft, and ability to bypass all security controls

🟠

Likely Case

Malicious app gains full system access, installs backdoors, and steals sensitive data

🟢

If Mitigated

Limited impact if proper app vetting and least privilege principles are followed

🌐 Internet-Facing: LOW - Requires local app execution, not directly exploitable over network

🏢 Internal Only: HIGH - Malicious or compromised local apps can exploit this for privilege escalation

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

Requires local app execution; kernel memory corruption vulnerabilities typically require sophisticated exploitation

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Ventura 13

Vendor Advisory: https://support.apple.com/en-us/HT213488

Restart Required: Yes

Instructions:

1. Open System Settings > General > Software Update
2. Install macOS Ventura 13 or later
3. Restart the system when prompted

🔧 Temporary Workarounds

Restrict app installations

all

Only allow apps from App Store and identified developers

sudo spctl --master-enable

Enable System Integrity Protection

all

Ensure SIP is enabled to limit kernel modifications

csrutil status

🧯 If You Can't Patch

Implement strict application control policies to prevent untrusted app execution
Use endpoint detection and response (EDR) solutions to monitor for suspicious kernel activity

🔍 How to Verify

Check if Vulnerable:

Check macOS version: if earlier than Ventura 13, system is vulnerable

Check Version:

sw_vers

Verify Fix Applied:

Verify macOS version is Ventura 13 or later

📡 Detection & Monitoring

Log Indicators:

Kernel panic logs
Unexpected kernel extensions loading
Suspicious process spawning with elevated privileges

Network Indicators:

Unusual outbound connections from kernel processes

SIEM Query:

process where parent_process_name contains 'kernel' and process_name not in (expected_kernel_processes)

📊 Metadata

CVE ID: CVE-2022-47965

CVSS v3 Score: 7.8 (HIGH)

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE: CWE-119

Published: January 10, 2024

Last Updated: June 20, 2025

🔗 References

https://support.apple.com/en-us/HT213488 Release Notes,Vendor Advisory
https://support.apple.com/en-us/HT213488 Release Notes,Vendor Advisory

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🔗 Related Vulnerabilities

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