CVE-2022-48681 – This CVE describes a memory overflow vulnerabil... (How to Fix)

Q: What is the severity of CVE-2022-48681?

CVE-2022-48681 has a CVSS score of 7.2 (HIGH). This CVE describes a memory overflow vulnerability in certain Huawei smart speakers. Successful exploitation could cause certain functions to fail, potentially leading to denial of service or other impacts. Affected users are those with vulnerable Huawei smart speaker models.

📋 TL;DR

This CVE describes a memory overflow vulnerability in certain Huawei smart speakers. Successful exploitation could cause certain functions to fail, potentially leading to denial of service or other impacts. Affected users are those with vulnerable Huawei smart speaker models.

💻 Affected Systems

Products:

Huawei smart speakers (specific models not detailed in provided references)

Versions: Specific versions not detailed in provided references

Operating Systems: Embedded OS on Huawei smart speakers

Default Config Vulnerable: ⚠️ Yes

Notes: Vulnerability affects certain Huawei smart speaker models; exact models and versions should be verified via Huawei advisories

📦 What is this software?

Egrt 00 Firmware by Huawei

View all CVEs affecting Egrt 00 Firmware →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to complete device compromise, data theft, or device becoming part of a botnet

🟠

Likely Case

Denial of service causing speaker functions to fail or device to crash/reboot

🟢

If Mitigated

Limited impact with proper network segmentation and access controls

🌐 Internet-Facing: MEDIUM

🏢 Internal Only: LOW

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ⚠️ Yes

Complexity: MEDIUM

Memory overflow vulnerabilities typically require specific conditions to exploit; CVSS 7.2 suggests moderate exploit complexity

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not specified in provided references

Vendor Advisory: https://www.huawei.com/en/psirt/security-advisories/2024/huawei-sa-samovishss-28e21e39-en

Restart Required: Yes

Instructions:

1. Check Huawei security advisory for affected models. 2. Update firmware to latest version via Huawei AI Life app or official update mechanism. 3. Restart device after update.

🔧 Temporary Workarounds

Network segmentation

all

Isolate smart speakers on separate VLAN or network segment

Disable unnecessary features

all

Turn off any non-essential smart speaker functions

🧯 If You Can't Patch

Disconnect device from network if not in use
Implement strict network access controls to limit device communication

🔍 How to Verify

Check if Vulnerable:

Check device model and firmware version in Huawei AI Life app, then compare with Huawei security advisory

Check Version:

Check via Huawei AI Life app: Device Settings > About > Version Information

Verify Fix Applied:

Confirm firmware version has been updated to version mentioned in Huawei security advisory

📡 Detection & Monitoring

Log Indicators:

Unexpected device reboots
Function failure logs
Memory error messages in device logs

Network Indicators:

Unusual network traffic patterns from smart speaker
Connection attempts to unexpected destinations

SIEM Query:

Not applicable for typical smart speaker deployments

📊 Metadata

CVE ID: CVE-2022-48681

CVSS v3 Score: 7.2 (HIGH)

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

CWE: CWE-119

Published: May 28, 2024

Last Updated: January 14, 2025

🔗 References

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🔗 Related Vulnerabilities

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