CVE-2024-49842

Q: What is the severity of CVE-2024-49842?

CVE-2024-49842 has a CVSS score of 7.8 (HIGH). This CVE describes a memory corruption vulnerability in Qualcomm components where incorrect API restrictions allow memory mapping into protected VM address space. Attackers could exploit this to execute arbitrary code or cause denial of service. This affects devices using vulnerable Qualcomm chipsets, primarily Android smartphones and IoT devices.

7.8 HIGH

📋 TL;DR

This CVE describes a memory corruption vulnerability in Qualcomm components where incorrect API restrictions allow memory mapping into protected VM address space. Attackers could exploit this to execute arbitrary code or cause denial of service. This affects devices using vulnerable Qualcomm chipsets, primarily Android smartphones and IoT devices.

💻 Affected Systems

Products:

Qualcomm chipsets with vulnerable components
Android devices using affected Qualcomm chips

Versions: Specific versions not detailed in reference; check Qualcomm May 2025 bulletin for exact affected versions

Operating Systems: Android, Linux-based systems using Qualcomm components

Default Config Vulnerable: ⚠️ Yes

Notes: Vulnerability is in Qualcomm firmware/drivers; exact device models depend on chipset implementation

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full device compromise with kernel-level code execution, allowing complete control over affected device including data theft, persistence, and lateral movement.

🟠

Likely Case

Local privilege escalation allowing attackers to gain elevated privileges on already compromised devices or through malicious apps.

🟢

If Mitigated

Limited impact with proper app sandboxing and SELinux policies in place, potentially only denial of service.

🌐 Internet-Facing: LOW - Requires local access or malicious app installation, not directly exploitable over network.

🏢 Internal Only: MEDIUM - Could be exploited by malicious apps or compromised user accounts on internal devices.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

Requires local access or malicious app; memory corruption vulnerabilities often require specific conditions to exploit reliably

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check Qualcomm May 2025 security bulletin for specific patched versions

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

Restart Required: Yes

Instructions:

1. Check Qualcomm advisory for affected chipset versions. 2. Contact device manufacturer for firmware updates. 3. Apply manufacturer-provided security patches. 4. Reboot device after update.

🔧 Temporary Workarounds

Restrict app permissions

android

Limit app access to sensitive permissions that could be used to trigger the vulnerability

Enable SELinux enforcing mode

linux

Ensure SELinux is in enforcing mode to limit potential damage from exploitation

getenforce
setenforce 1

🧯 If You Can't Patch

Isolate affected devices from critical networks and sensitive data
Implement application allowlisting to prevent unauthorized app execution

🔍 How to Verify

Check if Vulnerable:

Check device chipset version and compare against Qualcomm advisory; use 'getprop ro.boot.hardware' on Android devices to identify chipset

Check Version:

Android: 'getprop ro.build.version.security_patch' or 'getprop ro.boot.hardware'

Verify Fix Applied:

Verify security patch level is May 2025 or later; check with device manufacturer for specific patch verification

📡 Detection & Monitoring

Log Indicators:

Kernel panic logs
SELinux denials related to memory mapping operations
Unexpected process crashes with memory access violations

Network Indicators:

Not network exploitable; focus on local system behavior

SIEM Query:

Process: (kernel panic OR segmentation fault) AND Device: (Qualcomm chipset)

📊 Metadata

CVE ID: CVE-2024-49842

CVSS v3 Score: 7.8 (HIGH)

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

CWE: CWE-284

EPSS Score: 0.02% exploit probability (5.1th percentile)

Published: May 6, 2025

Last Updated: August 11, 2025

🔗 References

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

📋 TL;DR

💻 Affected Systems

📦 What is this software?

Aqt1000 Firmware by Qualcomm

Ar8035 Firmware by Qualcomm

Fastconnect 6200 Firmware by Qualcomm

Fastconnect 6700 Firmware by Qualcomm

Fastconnect 6800 Firmware by Qualcomm

Fastconnect 6900 Firmware by Qualcomm

Fastconnect 7800 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

Qamsrv1m Firmware by Qualcomm

Qca6174a Firmware by Qualcomm

Qca6310 Firmware by Qualcomm

Qca6335 Firmware by Qualcomm

Qca6391 Firmware by Qualcomm

Qca6420 Firmware by Qualcomm

Qca6421 Firmware by Qualcomm

Qca6426 Firmware by Qualcomm

Qca6430 Firmware by Qualcomm

Qca6431 Firmware by Qualcomm

Qca6436 Firmware by Qualcomm

Qca6564a Firmware by Qualcomm

Qca6564au Firmware by Qualcomm

Qca6574 Firmware by Qualcomm

Qca6574a Firmware by Qualcomm

Qca6574au Firmware by Qualcomm

Qca6584au Firmware by Qualcomm

Qca6595 Firmware by Qualcomm

Qca6595au Firmware by Qualcomm

Qca6678aq Firmware by Qualcomm

Qca6688aq Firmware by Qualcomm

Qca6696 Firmware by Qualcomm

Qca6698aq Firmware by Qualcomm

Qca6797aq Firmware by Qualcomm

Qca8081 Firmware by Qualcomm

Qca8337 Firmware by Qualcomm

Qca9377 Firmware by Qualcomm

Qcc710 Firmware by Qualcomm

Qcm5430 Firmware by Qualcomm

Qcm6490 Firmware by Qualcomm

Qcm8550 Firmware by Qualcomm

Qcn6224 Firmware by Qualcomm

Qcn6274 Firmware by Qualcomm

Qcn9274 Firmware by Qualcomm

Qcs5430 Firmware by Qualcomm

Qcs6490 Firmware by Qualcomm

Qcs8300 Firmware by Qualcomm

Qcs8550 Firmware by Qualcomm

Qcs9100 Firmware by Qualcomm

Qdu1000 Firmware by Qualcomm

Qdu1010 Firmware by Qualcomm

Qdu1110 Firmware by Qualcomm

Qdu1210 Firmware by Qualcomm

Qdx1010 Firmware by Qualcomm

Qdx1011 Firmware by Qualcomm

Qep8111 Firmware by Qualcomm

Qfw7114 Firmware by Qualcomm

Qfw7124 Firmware by Qualcomm

Qmp1000 Firmware by Qualcomm

Qru1032 Firmware by Qualcomm

Qru1052 Firmware by Qualcomm

Qru1062 Firmware by Qualcomm

Qsm8350 Firmware by Qualcomm

Robotics Rb3 Firmware by Qualcomm

Sa6145p Firmware by Qualcomm

Sa6155 Firmware by Qualcomm

Sa6155p Firmware by Qualcomm

Sa7255p Firmware by Qualcomm

Sa7775p Firmware by Qualcomm

Sa8150p Firmware by Qualcomm

Sa8155 Firmware by Qualcomm

Sa8155p Firmware by Qualcomm

Sa8255p Firmware by Qualcomm

Sa8295p Firmware by Qualcomm