CVE-2025-30452 – This CVE describes a critical input validation ... (How to Fix)

Q: What is the severity of CVE-2025-30452?

CVE-2025-30452 has a CVSS score of 9.8 (CRITICAL). This CVE describes a critical input validation vulnerability in macOS that could allow attackers to execute arbitrary code or cause system crashes. It affects macOS Ventura, Sequoia, and Sonoma versions before the patched releases. All users running vulnerable macOS versions are potentially affected.

📋 TL;DR

This CVE describes a critical input validation vulnerability in macOS that could allow attackers to execute arbitrary code or cause system crashes. It affects macOS Ventura, Sequoia, and Sonoma versions before the patched releases. All users running vulnerable macOS versions are potentially affected.

💻 Affected Systems

Products:

macOS

Versions: Versions before macOS Ventura 13.7.5, macOS Sequoia 15.4, macOS Sonoma 14.7.5

Operating Systems: macOS Ventura, macOS Sequoia, macOS Sonoma

Default Config Vulnerable: ⚠️ Yes

Notes: All standard installations of affected macOS versions are vulnerable. No special configuration required for exploitation.

📦 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...

Learn more about Macos →

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...

Learn more about Macos →

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...

Learn more about Macos →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution with full system compromise, potentially leading to data theft, ransomware deployment, or complete system takeover.

🟠

Likely Case

System crashes, denial of service, or limited code execution depending on exploit implementation and system configuration.

🟢

If Mitigated

Minimal impact with proper input validation and security controls in place, potentially limited to application crashes.

🌐 Internet-Facing: HIGH - The high CVSS score suggests potential for remote exploitation without authentication.

🏢 Internal Only: HIGH - Even internal systems could be exploited through various attack vectors.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

CVSS 9.8 suggests critical severity with low attack complexity and no authentication required. Apple has addressed this with improved input validation checks.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Ventura 13.7.5, macOS Sequoia 15.4, macOS Sonoma 14.7.5

Vendor Advisory: https://support.apple.com/en-us/122373

Restart Required: Yes

Instructions:

1. Open System Settings 2. Click General 3. Click Software Update 4. Install available updates 5. Restart when prompted

🔧 Temporary Workarounds

Network Segmentation

all

Isolate vulnerable macOS systems from untrusted networks and internet access

Application Whitelisting

macOS

Implement application control to prevent unauthorized code execution

🧯 If You Can't Patch

Implement strict network segmentation and firewall rules to limit exposure
Deploy endpoint detection and response (EDR) solutions with behavioral monitoring

🔍 How to Verify

Check if Vulnerable:

Check macOS version in System Settings > General > About. If version is earlier than Ventura 13.7.5, Sequoia 15.4, or Sonoma 14.7.5, system is vulnerable.

Check Version:

sw_vers

Verify Fix Applied:

Verify macOS version shows Ventura 13.7.5, Sequoia 15.4, or Sonoma 14.7.5 or later in System Settings > General > About.

📡 Detection & Monitoring

Log Indicators:

Unexpected process crashes
Unusual system log entries related to input validation failures
Security framework alerts

Network Indicators:

Unusual network connections from macOS systems
Suspicious inbound traffic to macOS services

SIEM Query:

source="macOS" AND (event_type="crash" OR event_type="security_violation") AND severity="critical"

📊 Metadata

CVE ID: CVE-2025-30452

CVSS v3 Score: 9.8 (CRITICAL)

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

CWE: CWE-20

EPSS Score: 0.7% exploit probability (71.5th percentile)

Published: March 31, 2025

Last Updated: November 3, 2025

🔗 References

https://support.apple.com/en-us/122373 Vendor Advisory
https://support.apple.com/en-us/122374 Vendor Advisory
https://support.apple.com/en-us/122375 Vendor Advisory
http://seclists.org/fulldisclosure/2025/Apr/10
http://seclists.org/fulldisclosure/2025/Apr/8
http://seclists.org/fulldisclosure/2025/Apr/9

📤 Share & Export

📄 Export Markdown 📋 Export JSON

🔗 Related Vulnerabilities

If you're affected by CVE-2025-30452, you might also want to check these: