CVE-2025-21436: Qualcomm Fastconnect 7800 Firmware

High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days.

Memory corruption may occur while initiating two IOCTL calls simultaneously to create processes from two different threads.

Affected products

• Qualcomm Fastconnect 7800 Firmware: affected versions not specified
• Qualcomm QMP1000 Firmware: affected versions not specified
• Qualcomm SM8735 Firmware: affected versions not specified
• Qualcomm SM8750 Firmware: affected versions not specified
• Qualcomm SM8750P Firmware: affected versions not specified
• Qualcomm Snapdragon 8 Gen 3 Mobile Platform Firmware: affected versions not specified
• Qualcomm Snapdragon w5+ Gen 1 Wearable Platform Firmware: affected versions not specified
• Qualcomm SW5100 Firmware: affected versions not specified
• Qualcomm SW5100P Firmware: affected versions not specified
• Qualcomm SXR2330P Firmware: affected versions not specified
• Qualcomm WCD9378 Firmware: affected versions not specified
• Qualcomm WCD9380 Firmware: affected versions not specified
• Qualcomm WCD9390 Firmware: affected versions not specified
• Qualcomm WCD9395 Firmware: affected versions not specified
• Qualcomm WCN7750 Firmware: affected versions not specified
• Qualcomm WCN7860 Firmware: affected versions not specified
• Qualcomm WCN7861 Firmware: affected versions not specified
• Qualcomm WCN7880 Firmware: affected versions not specified
• Qualcomm WCN7881 Firmware: affected versions not specified
• Qualcomm WSA8830 Firmware: affected versions not specified
• Qualcomm WSA8832 Firmware: affected versions not specified
• Qualcomm WSA8835 Firmware: affected versions not specified
• Qualcomm WSA8840 Firmware: affected versions not specified
• Qualcomm WSA8845 Firmware: affected versions not specified
• Qualcomm WSA8845H Firmware: affected versions not specified

Published 2025-04-07. Last modified 2026-06-17.