CVE-2020-3656

Severity: high (CVSS 7.8 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: 2020-09-09 · updated 2026-06-17
Weakness: CWE-120

Description

Out of bound access can happen in MHI command process due to lack of check of command channel id value received from MHI devices in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables in APQ8009, Kamorta, MDM9607, MSM8917, MSM8953, Nicobar, QCM2150, QCS405, QCS605, QM215, Rennell, SA6155P, SA8155P, Saipan, SC8180X, SDM429, SDM429W, SDM439, SDM450, SDM632, SDM710, SDM845, SDX55, SM6150, SM7150, SM8150, SM8250, SXR2130

Affected products

Qualcomm Apq8009 Firmware: all versions
Qualcomm Kamorta Firmware: all versions
Qualcomm Mdm9607 Firmware: all versions
Qualcomm Msm8917 Firmware: all versions
Qualcomm Msm8953 Firmware: all versions
Qualcomm Nicobar Firmware: all versions
Qualcomm Qcm2150 Firmware: all versions
Qualcomm Qcs405 Firmware: all versions
Qualcomm Qcs605 Firmware: all versions
Qualcomm Qm215 Firmware: all versions
Qualcomm Rennell Firmware: all versions
Qualcomm Sa6155P Firmware: all versions
Qualcomm Sa8155P Firmware: all versions
Qualcomm Saipan Firmware: all versions
Qualcomm Sc8180X Firmware: all versions
Qualcomm Sdm429 Firmware: all versions
Qualcomm Sdm429W Firmware: all versions
Qualcomm Sdm439 Firmware: all versions
Qualcomm Sdm450 Firmware: all versions
Qualcomm Sdm632 Firmware: all versions
Qualcomm Sdm710 Firmware: all versions
Qualcomm Sdm845 Firmware: all versions
Qualcomm Sdx55 Firmware: all versions
Qualcomm Sm6150 Firmware: all versions
Qualcomm Sm7150 Firmware: all versions
Qualcomm Sm8150 Firmware: all versions
Qualcomm Sm8250 Firmware: all versions
Qualcomm Sxr2130 Firmware: all versions

References

https://www.qualcomm.com/company/product-security/bulletins/september-2020-bulletin
https://www.qualcomm.com/company/product-security/bulletins/september-2020-bulletin

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