What’s Vulnerable › Vulnerabilities

CVE-2025-21481: Buffer Copy Without Checking Size of Input in HLOS

• 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: 2025-09-24 · updated 2026-06-17
• Weakness: CWE-120

Description

Memory corruption while performing private key encryption in trusted application.

Affected products

• Qualcomm 315 5G Iot Modem Firmware: all versions
• Qualcomm Aqt1000 Firmware: all versions
• Qualcomm Ar8031 Firmware: all versions
• Qualcomm Ar8035 Firmware: all versions
• Qualcomm C-V2X 9150 Firmware: all versions
• Qualcomm Csra6620 Firmware: all versions
• Qualcomm Csra6640 Firmware: all versions
• Qualcomm Fastconnect 6200 Firmware: all versions
• Qualcomm Fastconnect 6700 Firmware: all versions
• Qualcomm Fastconnect 6800 Firmware: all versions
• Qualcomm Fastconnect 6900 Firmware: all versions
• Qualcomm Fastconnect 7800 Firmware: all versions
• Qualcomm Flight Rb5 5G Platform Firmware: all versions
• Qualcomm Qam8255P Firmware: all versions
• Qualcomm Qam8295P Firmware: all versions
• Qualcomm Qam8620P Firmware: all versions
• Qualcomm Qam8650P Firmware: all versions
• Qualcomm Qam8775P Firmware: all versions
• Qualcomm Qamsrv1H Firmware: all versions
• Qualcomm Qamsrv1M Firmware: all versions
• Qualcomm Qca6174A Firmware: all versions
• Qualcomm Qca6391 Firmware: all versions
• Qualcomm Qca6420 Firmware: all versions
• Qualcomm Qca6421 Firmware: all versions
• Qualcomm Qca6426 Firmware: all versions
• Qualcomm Qca6430 Firmware: all versions
• Qualcomm Qca6431 Firmware: all versions
• Qualcomm Qca6436 Firmware: all versions
• Qualcomm Qca6574 Firmware: all versions
• Qualcomm Qca6574A Firmware: all versions

References

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

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