CVE-2021-35121: Qualcomm APQ8053 Firmware

Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days.

An array index is improperly used to lock and unlock a mutex which can lead to a Use After Free condition In the Synx driver in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile

Affected products

• Qualcomm APQ8053 Firmware: affected versions not specified
• Qualcomm MSM8953 Firmware: affected versions not specified
• Qualcomm QCA6390 Firmware: affected versions not specified
• Qualcomm QCA6391 Firmware: affected versions not specified
• Qualcomm QCA6426 Firmware: affected versions not specified
• Qualcomm QCA6436 Firmware: affected versions not specified
• Qualcomm QCM2290 Firmware: affected versions not specified
• Qualcomm QCM4290 Firmware: affected versions not specified
• Qualcomm QCS2290 Firmware: affected versions not specified
• Qualcomm QCS4290 Firmware: affected versions not specified
• Qualcomm QRB5165 Firmware: affected versions not specified
• Qualcomm QRB5165M Firmware: affected versions not specified
• Qualcomm QRB5165N Firmware: affected versions not specified
• Qualcomm SD460 Firmware: affected versions not specified
• Qualcomm SD662 Firmware: affected versions not specified
• Qualcomm SD680 Firmware: affected versions not specified
• Qualcomm SD690 5g Firmware: affected versions not specified
• Qualcomm SD750G Firmware: affected versions not specified
• Qualcomm SD765 Firmware: affected versions not specified
• Qualcomm SD765G Firmware: affected versions not specified
• Qualcomm SD768G Firmware: affected versions not specified
• Qualcomm SD865 5g Firmware: affected versions not specified
• Qualcomm SD870 Firmware: affected versions not specified
• Qualcomm SDX55M Firmware: affected versions not specified
• Qualcomm SDXR2 5g Firmware: affected versions not specified
• and 19 more

Published 2022-06-14. Last modified 2026-06-17.