What’s Vulnerable › Vulnerabilities

CVE-2025-21456: Use After Free in NPU

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-08-06 · updated 2026-06-17
• Weakness: CWE-416

Description

Memory corruption while processing IOCTL command when multiple threads are called to map/unmap buffer concurrently.

Affected products

• Qualcomm Ar8035 Firmware: all versions
• Qualcomm C-V2X 9150 Firmware: all versions
• Qualcomm Fastconnect 6900 Firmware: all versions
• Qualcomm Fastconnect 7800 Firmware: all versions
• Qualcomm Qam8255P Firmware: all versions
• Qualcomm Qam8295P Firmware: all versions
• Qualcomm Qam8650P Firmware: all versions
• Qualcomm Qam8775P Firmware: all versions
• Qualcomm Qca6174A Firmware: all versions
• Qualcomm Qca6574Au Firmware: all versions
• Qualcomm Qca6584Au Firmware: all versions
• Qualcomm Qca6696 Firmware: all versions
• Qualcomm Qca6698Aq Firmware: all versions
• Qualcomm Qca6797Aq Firmware: all versions
• Qualcomm Qca8081 Firmware: all versions
• Qualcomm Qca8337 Firmware: all versions
• Qualcomm Qcc710 Firmware: all versions
• Qualcomm Qcn6224 Firmware: all versions
• Qualcomm Qcn6274 Firmware: all versions
• Qualcomm Qcs410 Firmware: all versions
• Qualcomm Qcs610 Firmware: all versions
• Qualcomm Qfw7114 Firmware: all versions
• Qualcomm Qfw7124 Firmware: all versions
• Qualcomm Sa6145P Firmware: all versions
• Qualcomm Sa6150P Firmware: all versions
• Qualcomm Sa6155P Firmware: all versions
• Qualcomm Sa7255P Firmware: all versions
• Qualcomm Sa7775P Firmware: all versions
• Qualcomm Sa8145P Firmware: all versions
• Qualcomm Sa8150P Firmware: all versions

References

• https://docs.qualcomm.com/product/publicresources/securitybulletin/august-2025-bulletin.html

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