Home/CVE/Improper handling of ASB-U packet with L2CAP channel ID by slave host can lead to interference with piconet in Snapdrago
CVE

CVE-2021-1956

Improper handling of ASB-U packet with L2CAP channel ID by slave host can lead to interference with piconet in Snapdrago

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.

MEDIUM · CVSS 6.5 EPSS 0.00071
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
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Affected Products & Versions

42
qualcomm aqt1000 firmwareall versions
qualcomm ar8035 firmwareall versions
qualcomm csrb31024 firmwareall versions
qualcomm qca6175a firmwareall versions
qualcomm qca6390 firmwareall versions
qualcomm qca6391 firmwareall versions
qualcomm qca6420 firmwareall versions
qualcomm qca6430 firmwareall versions
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · product-security@qualcomm.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Sep 2021 · 08:15 AM
CVSS VectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.qualcomm.com/company/product-security/bulletins/september-2021-bulletinVendor Advisory
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