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Medium severity · published Sep 9, 2021
CVE-2021-1956
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,…
6.5
CVSS
0.2%
EPSS
No
On KEV
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
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AF
Aqt1000 Firmware · Qualcomm
All versions, or not specified · source: NVD
AF
Ar8035 Firmware · Qualcomm
All versions, or not specified · source: NVD
CF
Csrb31024 Firmware · Qualcomm
All versions, or not specified · source: NVD
QF
Qca6175a Firmware · Qualcomm
All versions, or not specified · source: NVD
QF
Qca6390 Firmware · Qualcomm
All versions, or not specified · source: NVD
QF
Qca6391 Firmware · Qualcomm
All versions, or not specified · source: NVD
QF
Qca6420 Firmware · Qualcomm
All versions, or not specified · source: NVD
QF
Qca6430 Firmware · Qualcomm
All versions, or not specified · source: NVD
QF
Qca6564a Firmware · Qualcomm
All versions, or not specified · source: NVD
QF
Qca6564au Firmware · Qualcomm
All versions, or not specified · source: NVD
QF
Qca6574 Firmware · Qualcomm
All versions, or not specified · source: NVD
QF
Qca6574a Firmware · Qualcomm
All versions, or not specified · source: NVD
Affected product
AF
Aqt1000 Firmware
Qualcomm
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-1956
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-1956
Vendor Advisory
https://www.qualcomm.com/company/product-security/bulletins/september-2021-bulletin
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