CVE-2024-49839

Q: What is the severity of CVE-2024-49839?

CVE-2024-49839 has a CVSS score of 8.2 (HIGH). This vulnerability allows memory corruption during Wi-Fi management frame processing due to a mismatch in T2LM (Target Wake Time Link Management) information elements. Attackers within Wi-Fi range could potentially execute arbitrary code or cause denial of service on affected devices. This primarily affects devices using Qualcomm Wi-Fi chipsets.

8.2 HIGH

📋 TL;DR

This vulnerability allows memory corruption during Wi-Fi management frame processing due to a mismatch in T2LM (Target Wake Time Link Management) information elements. Attackers within Wi-Fi range could potentially execute arbitrary code or cause denial of service on affected devices. This primarily affects devices using Qualcomm Wi-Fi chipsets.

💻 Affected Systems

Products:

Devices with Qualcomm Wi-Fi chipsets

Versions: Specific affected versions not publicly detailed in bulletin

Operating Systems: Android, Linux-based systems using affected Qualcomm drivers

Default Config Vulnerable: ⚠️ Yes

Notes: Vulnerability exists in Wi-Fi driver/firmware layer, affecting devices regardless of OS configuration

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to complete device compromise, data theft, or persistent backdoor installation

🟠

Likely Case

Denial of service causing Wi-Fi connectivity disruption or device crashes requiring reboot

🟢

If Mitigated

Limited impact with proper network segmentation and Wi-Fi security controls

🌐 Internet-Facing: MEDIUM - Requires attacker to be within Wi-Fi range but doesn't require internet connectivity

🏢 Internal Only: HIGH - Internal Wi-Fi networks provide direct attack surface for malicious insiders or compromised devices

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ⚠️ Yes

Complexity: MEDIUM

Exploitation requires Wi-Fi proximity and knowledge of Wi-Fi protocol manipulation

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Refer to Qualcomm February 2025 security bulletin for specific patched versions

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

Restart Required: Yes

Instructions:

1. Check device manufacturer for firmware updates 2. Apply Qualcomm-provided patches 3. Update Wi-Fi driver/firmware 4. Reboot device

🔧 Temporary Workarounds

Disable Wi-Fi when not needed

all

Turn off Wi-Fi radios on critical devices when wireless connectivity is not required

Implement Wi-Fi network segmentation

all

Isolate vulnerable devices on separate VLANs with strict access controls

🧯 If You Can't Patch

Deploy network monitoring for anomalous Wi-Fi management frames
Use wired connections for critical systems instead of Wi-Fi

🔍 How to Verify

Check if Vulnerable:

Check device specifications for Qualcomm Wi-Fi chipset and firmware version against Qualcomm's advisory

Check Version:

Device-specific commands vary by manufacturer (e.g., 'adb shell getprop' for Android, 'iwconfig' for Linux)

Verify Fix Applied:

Verify firmware/driver version matches patched versions in Qualcomm bulletin

📡 Detection & Monitoring

Log Indicators:

Wi-Fi driver crashes
Kernel panic logs
Unexpected device reboots

Network Indicators:

Malformed T2LM information elements in Wi-Fi captures
Excessive management frame traffic

SIEM Query:

source="wifi_logs" AND (event="driver_crash" OR event="kernel_panic")

📊 Metadata

CVE ID: CVE-2024-49839

CVSS v3 Score: 8.2 (HIGH)

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

CWE: CWE-126

EPSS Score: 0.19% exploit probability (41.1th percentile)

Published: February 3, 2025

Last Updated: August 11, 2025

🔗 References

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

📋 TL;DR

💻 Affected Systems

📦 What is this software?

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Immersive Home 214 Firmware by Qualcomm

Immersive Home 216 Firmware by Qualcomm

Immersive Home 316 Firmware by Qualcomm

Immersive Home 318 Firmware by Qualcomm

Immersive Home 3210 Firmware by Qualcomm

Immersive Home 326 Firmware by Qualcomm

Ipq5010 Firmware by Qualcomm

Ipq5028 Firmware by Qualcomm

Ipq5300 Firmware by Qualcomm

Ipq5302 Firmware by Qualcomm

Ipq5312 Firmware by Qualcomm

Ipq5332 Firmware by Qualcomm

Ipq6000 Firmware by Qualcomm

Ipq6010 Firmware by Qualcomm

Ipq6018 Firmware by Qualcomm

Ipq6028 Firmware by Qualcomm

Ipq8070a Firmware by Qualcomm

Ipq8071a Firmware by Qualcomm

Ipq8072a Firmware by Qualcomm

Ipq8074a Firmware by Qualcomm

Ipq8076 Firmware by Qualcomm

Ipq8076a Firmware by Qualcomm

Ipq8078 Firmware by Qualcomm

Ipq8078a Firmware by Qualcomm

Ipq8173 Firmware by Qualcomm

Ipq8174 Firmware by Qualcomm

Ipq9008 Firmware by Qualcomm

Ipq9048 Firmware by Qualcomm

Ipq9554 Firmware by Qualcomm

Ipq9570 Firmware by Qualcomm

Ipq9574 Firmware by Qualcomm

Qam8255p Firmware by Qualcomm

Qam8295p Firmware by Qualcomm

Qam8620p Firmware by Qualcomm

Qam8650p Firmware by Qualcomm

Qam8775p Firmware by Qualcomm

Qamsrv1h Firmware by Qualcomm

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Qca0000 Firmware by Qualcomm

Qca4024 Firmware by Qualcomm

Qca6391 Firmware by Qualcomm

Qca6554a Firmware by Qualcomm

Qca6564au Firmware by Qualcomm

Qca6574 Firmware by Qualcomm

Qca6574a Firmware by Qualcomm

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Qca6584au Firmware by Qualcomm

Qca6595 Firmware by Qualcomm

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Qca6678aq Firmware by Qualcomm

Qca6688aq Firmware by Qualcomm

Qca6696 Firmware by Qualcomm

Qca6698aq Firmware by Qualcomm

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Qca6797aq Firmware by Qualcomm

Qca8075 Firmware by Qualcomm

Qca8081 Firmware by Qualcomm

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Qca8084 Firmware by Qualcomm

Qca8085 Firmware by Qualcomm

Qca8337 Firmware by Qualcomm

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