CVE-2025-21421: Qualcomm AQT1000 Firmware

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

Memory corruption while processing escape code in API.

Affected products

  • Qualcomm AQT1000 Firmware: affected versions not specified
  • Qualcomm Fastconnect 6200 Firmware: affected versions not specified
  • Qualcomm Fastconnect 6700 Firmware: affected versions not specified
  • Qualcomm Fastconnect 6800 Firmware: affected versions not specified
  • Qualcomm Fastconnect 6900 Firmware: affected versions not specified
  • Qualcomm Fastconnect 7800 Firmware: affected versions not specified
  • Qualcomm QCA6391 Firmware: affected versions not specified
  • Qualcomm QCA6420 Firmware: affected versions not specified
  • Qualcomm QCA6430 Firmware: affected versions not specified
  • Qualcomm QCM5430 Firmware: affected versions not specified
  • Qualcomm QCM6490 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 SC8380XP Firmware: affected versions not specified
  • Qualcomm SM6250 Firmware: affected versions not specified
  • Qualcomm Snapdragon 7c+ Gen 3 Compute Firmware: affected versions not specified
  • Qualcomm Snapdragon 7c Compute Platform (sc7180-Ac) Firmware: affected versions not specified
  • Qualcomm Snapdragon 7c Gen 2 Compute Platform (sc7180-Ad) "rennell Pro" 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
  • and 20 more

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