CVE-2026-21375: Qualcomm Cologne Firmware

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

Memory Corruption when accessing an output buffer without validating its size during IOCTL processing.

Affected products

• Qualcomm Cologne Firmware: affected versions not specified
• 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 QCA0000 Firmware: affected versions not specified
• Qualcomm QCM5430 Firmware: affected versions not specified
• Qualcomm QCM6490 Firmware: affected versions not specified
• Qualcomm SC8380XP Firmware: affected versions not specified
• Qualcomm Snapdragon 460 Mobile Platform Firmware: affected versions not specified
• Qualcomm Snapdragon 662 Mobile Platform Firmware: affected versions not specified
• Qualcomm Snapdragon 7c+ Gen 3 Compute Firmware: affected versions not specified
• Qualcomm Snapdragon 8cx Gen 3 Compute Platform Firmware: affected versions not specified
• Qualcomm Snapdragon AR1 Gen 1 Platform Firmware: affected versions not specified
• Qualcomm Video Collaboration VC3 Platform Firmware: affected versions not specified
• Qualcomm WCD9370 Firmware: affected versions not specified
• Qualcomm WCD9375 Firmware: affected versions not specified
• Qualcomm WCD9378C Firmware: affected versions not specified
• Qualcomm WCD9380 Firmware: affected versions not specified
• Qualcomm WCD9385 Firmware: affected versions not specified
• Qualcomm WCN3950 Firmware: affected versions not specified
• Qualcomm WCN3988 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
• and 10 more

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