CVE-2025-47342 – This vulnerability allows a denial-of-service c... (How to Fix)

Q: What is the severity of CVE-2025-47342?

CVE-2025-47342 has a CVSS score of 7.1 (HIGH). This vulnerability allows a denial-of-service condition in Qualcomm hardware when multiple profiles run concurrently with QHS (Qualcomm High-Speed) enabled. It affects devices using vulnerable Qualcomm chipsets, potentially causing temporary service disruption. The impact is limited to availability rather than data compromise.

📋 TL;DR

This vulnerability allows a denial-of-service condition in Qualcomm hardware when multiple profiles run concurrently with QHS (Qualcomm High-Speed) enabled. It affects devices using vulnerable Qualcomm chipsets, potentially causing temporary service disruption. The impact is limited to availability rather than data compromise.

💻 Affected Systems

Products:

Qualcomm chipsets with QHS capability

Versions: Specific versions not detailed in reference; check Qualcomm advisory

Operating Systems: Android, Linux-based systems using affected chipsets

Default Config Vulnerable: ⚠️ Yes

Notes: Requires QHS enabled and multi-profile concurrency scenarios

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system crash requiring hard reboot, disrupting all services on affected device

🟠

Likely Case

Temporary service degradation or application crashes until system recovers

🟢

If Mitigated

Minor performance impact with quick automatic recovery

🌐 Internet-Facing: MEDIUM - Could be triggered remotely if attacker can induce multi-profile concurrency

🏢 Internal Only: MEDIUM - Internal users or processes could trigger the condition

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

Requires ability to trigger specific multi-profile concurrency conditions

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check Qualcomm October 2025 security bulletin

Vendor Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/october-2025-bulletin.html

Restart Required: Yes

Instructions:

1. Check device manufacturer for firmware updates
2. Apply Qualcomm-provided patches through OEM updates
3. Reboot device after update

🔧 Temporary Workarounds

Disable QHS feature

all

Turn off Qualcomm High-Speed feature if not required

Device-specific; check manufacturer documentation

Limit concurrent profiles

all

Restrict multi-profile operations through policy

Configuration dependent on device management system

🧯 If You Can't Patch

Isolate affected devices from critical services
Implement monitoring for DoS symptoms and establish recovery procedures

🔍 How to Verify

Check if Vulnerable:

Check chipset version against Qualcomm advisory; examine if QHS is enabled in system configuration

Check Version:

Device-specific; typically 'getprop' or manufacturer diagnostic commands

Verify Fix Applied:

Verify firmware version matches patched version from manufacturer; test multi-profile operations

📡 Detection & Monitoring

Log Indicators:

Unexpected system reboots
Kernel panic logs
QHS-related error messages

Network Indicators:

Sudden service unavailability
Increased timeout errors

SIEM Query:

Search for 'kernel panic' OR 'system crash' OR 'QHS error' in system logs

📊 Metadata

CVE ID: CVE-2025-47342

CVSS v3 Score: 7.1 (HIGH)

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

CWE: CWE-416

EPSS Score: 0.07% exploit probability (21.5th percentile)

Published: October 9, 2025

Last Updated: October 21, 2025

🔗 References

https://docs.qualcomm.com/product/publicresources/securitybulletin/october-2025-bulletin.html Vendor Advisory

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