CVE-2022-48500 – This vulnerability involves configuration defec... (How to Fix)

Q: What is the severity of CVE-2022-48500?

CVE-2022-48500 has a CVSS score of 7.5 (HIGH). This vulnerability involves configuration defects in Huawei's secure OS module that can be exploited to cause denial of service. It affects Huawei smartphone users running vulnerable versions of EMUI/Magic UI. Successful exploitation would disrupt device availability.

📋 TL;DR

This vulnerability involves configuration defects in Huawei's secure OS module that can be exploited to cause denial of service. It affects Huawei smartphone users running vulnerable versions of EMUI/Magic UI. Successful exploitation would disrupt device availability.

💻 Affected Systems

Products:

Huawei smartphones with EMUI/Magic UI

Versions: Specific versions not detailed in provided references, but Huawei bulletins from June 2023 indicate affected devices

Operating Systems: Android-based EMUI/Magic UI

Default Config Vulnerable: ⚠️ Yes

Notes: Vulnerability exists in secure OS module configuration; exact device models not specified in provided references

📦 What is this software?

Emui by Huawei

View all CVEs affecting Emui →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete device unavailability requiring factory reset or hardware intervention to restore functionality.

🟠

Likely Case

Temporary device instability, crashes, or inability to boot properly until manually restarted.

🟢

If Mitigated

Minimal impact with proper patching and configuration hardening in place.

🌐 Internet-Facing: LOW - This appears to be a local vulnerability requiring physical or local access to the device.

🏢 Internal Only: MEDIUM - Could be exploited by malicious apps or users with physical access to cause service disruption.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

Exploitation likely requires local access or malicious app installation; no public exploit details available

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Specific version not provided in references, but Huawei released security updates in June 2023

Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2023/6/

Restart Required: Yes

Instructions:

1. Check for system updates in device Settings 2. Install latest security update from Huawei 3. Restart device after installation

🔧 Temporary Workarounds

Disable unnecessary system components

android

Reduce attack surface by disabling unused system features and services

Restrict app installation sources

android

Only install apps from trusted sources like official app stores

🧯 If You Can't Patch

Isolate affected devices from critical networks and functions
Implement strict app installation policies and monitor for suspicious behavior

🔍 How to Verify

Check if Vulnerable:

Check device security patch level in Settings > About phone > Build number/EMUI version

Check Version:

Settings > About phone > EMUI version/Security patch level

Verify Fix Applied:

Verify security patch date is June 2023 or later in device security settings

📡 Detection & Monitoring

Log Indicators:

Unexpected system crashes
Secure OS module errors
Abnormal boot sequences

Network Indicators:

None - local vulnerability

SIEM Query:

Not applicable for typical mobile device deployments

📊 Metadata

CVE ID: CVE-2022-48500

CVSS v3 Score: 7.5 (HIGH)

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

CWE: CWE-404

Published: June 19, 2023

Last Updated: December 26, 2024

🔗 References

https://consumer.huawei.com/en/support/bulletin/2023/6/ Vendor Advisory
https://consumer.huawei.com/en/support/bulletin/2023/6/ Vendor Advisory

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