CVE-2026-21370: Qualcomm Fastconnect 6700 Firmware

Medium severity, CVSS 5.3. EPSS: 0.1% chance of exploitation in the next 30 days.

Memory Corruption when validating input batch size and buffer plane count exceeds maximum allowed values.

Affected products

• Qualcomm Fastconnect 6700 Firmware: affected versions not specified
• Qualcomm Fastconnect 6900 Firmware: affected versions not specified
• Qualcomm Fastconnect 7800 Firmware: affected versions not specified
• Qualcomm g3x Gen 2 Firmware: affected versions not specified
• Qualcomm Iq-9075 Firmware: affected versions not specified
• Qualcomm Lemans Au Lgit Firmware: affected versions not specified
• Qualcomm Lemansau Firmware: affected versions not specified
• Qualcomm Netrani Firmware: affected versions not specified
• Qualcomm Pandeiro Firmware: affected versions not specified
• Qualcomm QAM8255P Firmware: affected versions not specified
• Qualcomm QAMSRV1H Firmware: affected versions not specified
• Qualcomm QAMSRV1M Firmware: affected versions not specified
• Qualcomm QCA6595 Firmware: affected versions not specified
• Qualcomm QCA6595AU Firmware: affected versions not specified
• Qualcomm QCA6678AQ Firmware: affected versions not specified
• Qualcomm QCA6698AQ Firmware: affected versions not specified
• Qualcomm QCA6698AU Firmware: affected versions not specified
• Qualcomm QCA6797AQ Firmware: affected versions not specified
• Qualcomm QCM4490 Firmware: affected versions not specified
• Qualcomm QCM8838 Firmware: affected versions not specified
• Qualcomm QCS4490 Firmware: affected versions not specified
• Qualcomm QCS8550 Firmware: affected versions not specified
• Qualcomm QLN1083BD Firmware: affected versions not specified
• Qualcomm QLN1086BD Firmware: affected versions not specified
• Qualcomm QPA1083BD Firmware: affected versions not specified
• and 66 more

Published 2026-07-06. Last modified 2026-07-07.