What’s Vulnerable › Vulnerabilities

CVE-2023-33040: Buffer Over-read in Data Modem

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-01-02 · updated 2026-06-17
• Weakness: CWE-126

Description

Transient DOS in Data Modem during DTLS handshake.

Affected products

• Qualcomm 315 5G Iot Modem Firmware: all versions
• Qualcomm Aqt1000 Firmware: all versions
• Qualcomm Ar8035 Firmware: all versions
• Qualcomm Csra6620 Firmware: all versions
• Qualcomm Csra6640 Firmware: all versions
• Qualcomm Csrb31024 Firmware: all versions
• Qualcomm Fastconnect 6200 Firmware: all versions
• Qualcomm Fastconnect 6700 Firmware: all versions
• Qualcomm Fastconnect 6800 Firmware: all versions
• Qualcomm Fastconnect 6900 Firmware: all versions
• Qualcomm Fastconnect 7800 Firmware: all versions
• Qualcomm Qca6174A Firmware: all versions
• Qualcomm Qca6391 Firmware: all versions
• Qualcomm Qca6420 Firmware: all versions
• Qualcomm Qca6421 Firmware: all versions
• Qualcomm Qca6426 Firmware: all versions
• Qualcomm Qca6430 Firmware: all versions
• Qualcomm Qca6431 Firmware: all versions
• Qualcomm Qca6436 Firmware: all versions
• Qualcomm Qca6564Au Firmware: all versions
• Qualcomm Qca6574A Firmware: all versions
• Qualcomm Qca6574Au Firmware: all versions
• Qualcomm Qca6595Au Firmware: all versions
• Qualcomm Qca6696 Firmware: all versions
• Qualcomm Qca6698Aq Firmware: all versions
• Qualcomm Qca8081 Firmware: all versions
• Qualcomm Qca8337 Firmware: all versions
• Qualcomm Qca9377 Firmware: all versions
• Qualcomm Qcm2290 Firmware: all versions
• Qualcomm Qcm4290 Firmware: all versions

References

• https://www.qualcomm.com/company/product-security/bulletins/january-2024-bulletin
• https://www.qualcomm.com/company/product-security/bulletins/january-2024-bulletin

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