What’s Vulnerable › Vulnerabilities

CVE-2025-27071: Buffer Copy Without Checking Size of Input in Powerline Communication Firmware

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% 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-120

Description

Memory corruption while processing specific files in Powerline Communication Firmware.

Affected products

• Qualcomm Fastconnect 6800 Firmware: all versions
• Qualcomm Fastconnect 6900 Firmware: all versions
• Qualcomm Fastconnect 7800 Firmware: all versions
• Qualcomm Qca6391 Firmware: all versions
• Qualcomm Qca6426 Firmware: all versions
• Qualcomm Qca6436 Firmware: all versions
• Qualcomm Qsm8250 Firmware: all versions
• Qualcomm Sd865 5G Firmware: all versions
• Qualcomm Sdm429W Firmware: all versions
• Qualcomm Sdx55 Firmware: all versions
• Qualcomm Snapdragon 429 Mobile Platform Firmware: all versions
• Qualcomm Snapdragon 865+ 5G Mobile Platform (Sm8250-Ab) Firmware: all versions
• Qualcomm Snapdragon 865 5G Mobile Platform Firmware: all versions
• Qualcomm Snapdragon 870 5G Mobile Platform (Sm8250-Ac) Firmware: all versions
• Qualcomm Snapdragon 8 Gen 1 Mobile Platform Firmware: all versions
• Qualcomm Snapdragon W5+ Gen 1 Wearable Platform Firmware: all versions
• Qualcomm Snapdragon X55 5G Modem-Rf System Firmware: all versions
• Qualcomm Snapdragon Xr2 5G Platform Firmware: all versions
• Qualcomm Sw5100 Firmware: all versions
• Qualcomm Sw5100P Firmware: all versions
• Qualcomm Sxr2130 Firmware: all versions
• Qualcomm Sxr2230P Firmware: all versions
• Qualcomm Sxr2250P Firmware: all versions
• Qualcomm Wcd9380 Firmware: all versions
• Qualcomm Wcd9385 Firmware: all versions
• Qualcomm Wcn3620 Firmware: all versions
• Qualcomm Wcn3660B Firmware: all versions
• Qualcomm Wcn3980 Firmware: all versions
• Qualcomm Wcn3988 Firmware: all versions
• Qualcomm Wsa8810 Firmware: all versions

References

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

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