CVE-2024-49845

Q: What is the severity of CVE-2024-49845?

CVE-2024-49845 has a CVSS score of 7.8 (HIGH). This vulnerability involves memory corruption during the FRS UDS generation process in Qualcomm components, potentially allowing attackers to execute arbitrary code or cause denial of service. It affects devices using vulnerable Qualcomm chipsets, primarily mobile devices and IoT products.

7.8 HIGH

📋 TL;DR

This vulnerability involves memory corruption during the FRS UDS generation process in Qualcomm components, potentially allowing attackers to execute arbitrary code or cause denial of service. It affects devices using vulnerable Qualcomm chipsets, primarily mobile devices and IoT products.

💻 Affected Systems

Products:

Qualcomm chipsets with FRS UDS functionality

Versions: Specific versions not detailed in reference; check Qualcomm advisory for affected chipset models

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

Default Config Vulnerable: ⚠️ Yes

Notes: Affects devices with vulnerable Qualcomm firmware; exact models depend on chipset implementation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution with kernel privileges leading to complete device compromise, data theft, or persistent backdoor installation.

🟠

Likely Case

Local privilege escalation or denial of service affecting device stability and availability.

🟢

If Mitigated

Limited impact with proper memory protections and exploit mitigations in place.

🌐 Internet-Facing: MEDIUM

🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

Exploitation likely requires local access or specific conditions; memory corruption vulnerabilities can be leveraged for privilege escalation.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Refer to Qualcomm security bulletin for specific firmware 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 models. 2. Obtain updated firmware from device manufacturer. 3. Apply firmware update following manufacturer instructions. 4. Reboot device to activate patch.

🔧 Temporary Workarounds

Restrict local access

all

Limit physical and network access to vulnerable devices to reduce attack surface.

🧯 If You Can't Patch

Isolate affected devices on segmented networks with strict access controls.
Implement application allowlisting and memory protection mechanisms where supported.

🔍 How to Verify

Check if Vulnerable:

Check device chipset model and firmware version against Qualcomm advisory; use 'cat /proc/cpuinfo' on Linux systems to identify Qualcomm chips.

Check Version:

Check manufacturer-specific commands for firmware version (e.g., 'getprop ro.build.version.incremental' on Android).

Verify Fix Applied:

Verify firmware version has been updated to patched release specified in Qualcomm bulletin.

📡 Detection & Monitoring

Log Indicators:

Kernel panic logs, memory corruption errors in system logs, unexpected process crashes

Network Indicators:

Unusual local network traffic to/from affected devices

SIEM Query:

Search for events related to kernel crashes or privilege escalation attempts on devices with Qualcomm chipsets.

📊 Metadata

CVE ID: CVE-2024-49845

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-20

EPSS Score: 0.03% exploit probability (9.3th percentile)

Published: May 6, 2025

Last Updated: May 9, 2025

🔗 References

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

📋 TL;DR

💻 Affected Systems

📦 What is this software?

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

Qca6391 Firmware by Qualcomm

Qca6421 Firmware by Qualcomm

Qca6426 Firmware by Qualcomm

Qca6431 Firmware by Qualcomm

Qca6436 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

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

Qcs615 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

Sa6145p Firmware by Qualcomm

Sa6150p Firmware by Qualcomm

Sa6155p Firmware by Qualcomm

Sa7255p Firmware by Qualcomm

Sa7775p Firmware by Qualcomm

Sa8145p Firmware by Qualcomm

Sa8150p Firmware by Qualcomm

Sa8155p Firmware by Qualcomm

Sa8195p Firmware by Qualcomm

Sa8255p Firmware by Qualcomm

Sa8295p Firmware by Qualcomm

Sa8530p Firmware by Qualcomm

Sa8540p Firmware by Qualcomm

Sa8620p Firmware by Qualcomm

Sa8650p Firmware by Qualcomm

Sa8770p Firmware by Qualcomm

Sa8775p Firmware by Qualcomm

Sa9000p Firmware by Qualcomm