CVE-2025-21439: Qualcomm Fastconnect 6700 Firmware

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

Memory corruption may occur while reading board data via IOCTL call when the WLAN driver copies the content to the provided output buffer.

Affected products

  • Qualcomm Fastconnect 6700 Firmware: affected versions not specified
  • Qualcomm Fastconnect 6900 Firmware: affected versions not specified
  • Qualcomm QCA6595AU Firmware: affected versions not specified
  • Qualcomm QCM5430 Firmware: affected versions not specified
  • Qualcomm QCM6490 Firmware: affected versions not specified
  • Qualcomm QCN7605 Firmware: affected versions not specified
  • Qualcomm QCN7606 Firmware: affected versions not specified
  • Qualcomm QCS5430 Firmware: affected versions not specified
  • Qualcomm QCS6490 Firmware: affected versions not specified
  • Qualcomm SC8180X+SDX55 Firmware: affected versions not specified
  • Qualcomm Snapdragon 8c Compute Platform (sc8180x-Ad) Firmware: affected versions not specified
  • Qualcomm Snapdragon 8c Compute Platform (sc8180xp-Ad) Firmware: affected versions not specified
  • Qualcomm Snapdragon 8cx Compute Platform (sc8180x-Aa) Firmware: affected versions not specified
  • Qualcomm Snapdragon 8cx Compute Platform (sc8180x-Ab) Firmware: affected versions not specified
  • Qualcomm Snapdragon 8cx Compute Platform (sc8180xp-Ac) Firmware: affected versions not specified
  • Qualcomm Snapdragon 8cx Compute Platform (sc8180xp-Af) Firmware: affected versions not specified
  • Qualcomm Snapdragon 8cx Gen 2 5g Compute Platform (sc8180x-Ac) Firmware: affected versions not specified
  • Qualcomm Snapdragon 8cx Gen 2 5g Compute Platform (sc8180x-Af) Firmware: affected versions not specified
  • Qualcomm Snapdragon 8cx Gen 2 5g Compute Platform (sc8180xp-Aa) Firmware: affected versions not specified
  • Qualcomm Snapdragon 8cx Gen 2 5g Compute Platform (sc8180xp-Ab) 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 WCD9380 Firmware: affected versions not specified
  • Qualcomm WCD9385 Firmware: affected versions not specified

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