CVE-2022-33264

Q: What is the severity of CVE-2022-33264?

CVE-2022-33264 has a CVSS score of 7.9 (HIGH). CVE-2022-33264 is a stack-based buffer overflow vulnerability in Qualcomm modem firmware that allows memory corruption when parsing OTASP Key Generation Request Messages. Successful exploitation could allow remote code execution on affected devices. This affects mobile devices and IoT products using vulnerable Qualcomm modem chipsets.

7.9 HIGH

Remote Code Execution Buffer Overflow

📋 TL;DR

CVE-2022-33264 is a stack-based buffer overflow vulnerability in Qualcomm modem firmware that allows memory corruption when parsing OTASP Key Generation Request Messages. Successful exploitation could allow remote code execution on affected devices. This affects mobile devices and IoT products using vulnerable Qualcomm modem chipsets.

💻 Affected Systems

Products:

Qualcomm modem chipsets and devices using them

Versions: Specific affected versions not publicly detailed in bulletin

Operating Systems: Android and other mobile OS using Qualcomm modems

Default Config Vulnerable: ⚠️ Yes

Notes: Affects devices with vulnerable modem firmware. Exact device models depend on OEM implementation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote attacker gains full control of modem processor, potentially enabling persistent compromise, interception of communications, or device bricking.

🟠

Likely Case

Remote code execution on modem subsystem leading to service disruption, data interception, or device instability.

🟢

If Mitigated

Denial of service through modem crash requiring device reboot.

🌐 Internet-Facing: HIGH - Attack can be triggered remotely via cellular network without user interaction.

🏢 Internal Only: LOW - Primarily affects devices exposed to cellular networks, not internal enterprise networks.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ⚠️ Yes

Complexity: MEDIUM

Exploitation requires sending specially crafted OTASP messages over cellular network. No public exploit code available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Patched in June 2023 security updates

Vendor Advisory: https://www.qualcomm.com/company/product-security/bulletins/june-2023-bulletin

Restart Required: Yes

Instructions:

1. Check with device manufacturer for security updates. 2. Apply latest firmware/OS updates. 3. Reboot device after update.

🔧 Temporary Workarounds

Disable OTASP if possible

all

Disable Over-The-Air Service Provisioning if not required

🧯 If You Can't Patch

Isolate affected devices from untrusted cellular networks if possible
Monitor for unusual modem behavior or crashes

🔍 How to Verify

Check if Vulnerable:

Check device security patch level - devices with June 2023 or later patches should be protected.

Check Version:

On Android: Settings > About phone > Android security patch level

Verify Fix Applied:

Verify device has June 2023 or later security patch level installed.

📡 Detection & Monitoring

Log Indicators:

Modem crash logs
Unexpected modem resets
OTASP protocol anomalies

Network Indicators:

Unusual OTASP traffic patterns
Malformed cellular protocol messages

SIEM Query:

Not applicable - detection primarily at modem firmware level

📊 Metadata

CVE ID: CVE-2022-33264

CVSS v3 Score: 7.9 (HIGH)

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

CWE: CWE-121

Published: June 6, 2023

Last Updated: November 21, 2024

🔗 References

https://www.qualcomm.com/company/product-security/bulletins/june-2023-bulletin Vendor Advisory
https://www.qualcomm.com/company/product-security/bulletins/june-2023-bulletin Vendor Advisory

📋 TL;DR

💻 Affected Systems

📦 What is this software?

315 5g Iot Modem Firmware by Qualcomm

8953pro Firmware by Qualcomm

9207 Lte Modem Firmware by Qualcomm

Apq5053 Aa Firmware by Qualcomm

Apq8017 Firmware by Qualcomm

Apq8037 Firmware by Qualcomm

Apq8053 Aa Firmware by Qualcomm

Apq8053 Ac Firmware by Qualcomm

Aqt1000 Firmware by Qualcomm

Ar6003 Firmware by Qualcomm

Ar8035 Firmware by Qualcomm

C V2x 9150 Firmware by Qualcomm

Csra6620 Firmware by Qualcomm

Csra6640 Firmware by Qualcomm

Csrb31024 Firmware by Qualcomm

Mdm8207 Firmware by Qualcomm

Mdm8215 Firmware by Qualcomm

Mdm8215m Firmware by Qualcomm

Mdm8615m Firmware by Qualcomm

Mdm9215 Firmware by Qualcomm

Mdm9230 Firmware by Qualcomm

Mdm9250 Firmware by Qualcomm

Mdm9310 Firmware by Qualcomm

Mdm9330 Firmware by Qualcomm

Mdm9615 Firmware by Qualcomm

Mdm9615m Firmware by Qualcomm

Mdm9628 Firmware by Qualcomm

Mdm9630 Firmware by Qualcomm

Mdm9640 Firmware by Qualcomm

Mdm9650 Firmware by Qualcomm

Msm8108 Firmware by Qualcomm

Msm8209 Firmware by Qualcomm

Msm8608 Firmware by Qualcomm

Msm8905 Firmware by Qualcomm

Msm8909w Firmware by Qualcomm

Msm8996au Firmware by Qualcomm

Qca6174 Firmware by Qualcomm

Qca6174a Firmware by Qualcomm

Qca6310 Firmware by Qualcomm

Qca6320 Firmware by Qualcomm

Qca6335 Firmware by Qualcomm

Qca6390 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

Qca6584 Firmware by Qualcomm

Qca6584au Firmware by Qualcomm

Qca6595au Firmware by Qualcomm

Qca6696 Firmware by Qualcomm

Qca6698aq Firmware by Qualcomm

Qca8081 Firmware by Qualcomm

Qca8337 Firmware by Qualcomm

Qca9367 Firmware by Qualcomm

Qca9377 Firmware by Qualcomm

Qcm2290 Firmware by Qualcomm

Qcm4290 Firmware by Qualcomm

Qcm4325 Firmware by Qualcomm

Qcm6125 Firmware by Qualcomm

Qcm6490 Firmware by Qualcomm

Qcn6024 Firmware by Qualcomm

Qcn9024 Firmware by Qualcomm

Qcs2290 Firmware by Qualcomm

Qcs410 Firmware by Qualcomm

Qcs4290 Firmware by Qualcomm

Qcs610 Firmware by Qualcomm

Qcs6125 Firmware by Qualcomm

Qcs6490 Firmware by Qualcomm

Qcs8550 Firmware by Qualcomm