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Medium severity6.5NVD Advisory· Published Sep 9, 2021· Updated Jun 17, 2026

CVE-2021-1956

CVE-2021-1956

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

44
  • Qualcomm/Aqt1000 Firmware
    cpe:2.3:o:qualcomm:aqt1000_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Ar8035 Firmware
    cpe:2.3:o:qualcomm:ar8035_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Csrb31024 Firmware
    cpe:2.3:o:qualcomm:csrb31024_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Qca6175a Firmware
    cpe:2.3:o:qualcomm:qca6175a_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Qca6390 Firmware
    cpe:2.3:o:qualcomm:qca6390_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Qca6391 Firmware
    cpe:2.3:o:qualcomm:qca6391_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Qca6420 Firmware
    cpe:2.3:o:qualcomm:qca6420_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Qca6430 Firmware
    cpe:2.3:o:qualcomm:qca6430_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Qca6584au Firmware4 versions
    cpe:2.3:o:qualcomm:qca6564a_firmware:-:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:o:qualcomm:qca6564a_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:qualcomm:qca6574a_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:qualcomm:qca6574au_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:qualcomm:qca6584au_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Qca6595au Firmware3 versions
    cpe:2.3:o:qualcomm:qca6564au_firmware:-:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:qualcomm:qca6564au_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:qualcomm:qca6595_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:qualcomm:qca6595au_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Qca6574 Firmware
    cpe:2.3:o:qualcomm:qca6574_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Qca6696 Firmware
    cpe:2.3:o:qualcomm:qca6696_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Qca8337 Firmware
    cpe:2.3:o:qualcomm:qca8337_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Qcn7605 Firmware
    cpe:2.3:o:qualcomm:qcn7605_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Qcn7606 Firmware
    cpe:2.3:o:qualcomm:qcn7606_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Qcx315 Firmware
    cpe:2.3:o:qualcomm:qcx315_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Sa415m Firmware
    cpe:2.3:o:qualcomm:sa415m_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Sa515m Firmware
    cpe:2.3:o:qualcomm:sa515m_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Sa8155p Firmware4 versions
    cpe:2.3:o:qualcomm:sa6145p_firmware:-:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:o:qualcomm:sa6145p_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:qualcomm:sa6155_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:qualcomm:sa6155p_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:qualcomm:sa8155p_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Sa8150p Firmware3 versions
    cpe:2.3:o:qualcomm:sa6150p_firmware:-:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:qualcomm:sa6150p_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:qualcomm:sa8150p_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:qualcomm:sa8155_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Sa8145p Firmware
    cpe:2.3:o:qualcomm:sa8145p_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Sa7255p Firmware
    cpe:2.3:o:qualcomm:sa8195p_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Sc8180x\+sdx55 Firmware
    cpe:2.3:o:qualcomm:sc8180x\+sdx55_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Sd 8c Firmware
    cpe:2.3:o:qualcomm:sd_8c_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Sd 8cx Firmware
    cpe:2.3:o:qualcomm:sd_8cx_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Sdx55 Firmware
    cpe:2.3:o:qualcomm:sdx55_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Wcd9340 Firmware
    cpe:2.3:o:qualcomm:wcd9340_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Wcd9341 Firmware
    cpe:2.3:o:qualcomm:wcd9341_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Wcd9360 Firmware
    cpe:2.3:o:qualcomm:wcd9360_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Wcn3998 Firmware
    cpe:2.3:o:qualcomm:wcn3998_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Wsa8815 Firmware2 versions
    cpe:2.3:o:qualcomm:wsa8810_firmware:-:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:qualcomm:wsa8810_firmware:-:*:*:*:*:*:*:*
    • cpe:2.3:o:qualcomm:wsa8815_firmware:-:*:*:*:*:*:*:*
  • Qualcomm/Snapdragonllm-fuzzy
  • Qualcomm, Inc./Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Musicv5
    Range: AQT1000, AR8035, CSRB31024, QCA6175A, QCA6390, QCA6391, QCA6420, QCA6430, QCA6564A, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6584AU, QCA6595, QCA6595AU, QCA6696, QCA8337, QCN7605, QCN7606, QCX315, SA415M, SA515M, SA6145P, SA6150P, SA6155, SA6155P, SA8145P, SA8150P, SA8155, SA8155P, SA8195P, SC8180X+SDX55, SD 8C, SD 8CX, SDX55, WCD9340, WCD9341, WCD9360, WCN3998, WSA8810, WSA8815

Patches

Vulnerability mechanics

References

1

News mentions

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