CVE-2021-1956

Severity: medium (CVSS 6.5 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: 2021-09-09 · updated 2026-06-17

Description

Improper handling of ASB-U packet with L2CAP channel ID by slave host can lead to interference with piconet in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

Affected products

Qualcomm Aqt1000 Firmware: all versions
Qualcomm Ar8035 Firmware: all versions
Qualcomm Csrb31024 Firmware: all versions
Qualcomm Qca6175A Firmware: all versions
Qualcomm Qca6390 Firmware: all versions
Qualcomm Qca6391 Firmware: all versions
Qualcomm Qca6420 Firmware: all versions
Qualcomm Qca6430 Firmware: all versions
Qualcomm Qca6564A Firmware: all versions
Qualcomm Qca6564Au Firmware: all versions
Qualcomm Qca6574 Firmware: all versions
Qualcomm Qca6574A Firmware: all versions
Qualcomm Qca6574Au Firmware: all versions
Qualcomm Qca6584Au Firmware: all versions
Qualcomm Qca6595 Firmware: all versions
Qualcomm Qca6595Au Firmware: all versions
Qualcomm Qca6696 Firmware: all versions
Qualcomm Qca8337 Firmware: all versions
Qualcomm Qcn7605 Firmware: all versions
Qualcomm Qcn7606 Firmware: all versions
Qualcomm Qcx315 Firmware: all versions
Qualcomm Sa415M Firmware: all versions
Qualcomm Sa515M Firmware: all versions
Qualcomm Sa6145P Firmware: all versions
Qualcomm Sa6150P Firmware: all versions
Qualcomm Sa6155 Firmware: all versions
Qualcomm Sa6155P Firmware: all versions
Qualcomm Sa8145P Firmware: all versions
Qualcomm Sa8150P Firmware: all versions
Qualcomm Sa8155 Firmware: all versions

References

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