Medium severity · published Nov 12, 2021
CVE-2021-1903
Possible denial of service scenario can occur due to lack of length check on Channel Switch Announcement IE in beacon or probe response frame in Snapdragon Auto, Snapdragon…
5.3
CVSS
0.5%
EPSS
No
On KEV
Description
Possible denial of service scenario can occur due to lack of length check on Channel Switch Announcement IE in beacon or probe response frame in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 46% 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
Ar8031 Firmware · Qualcomm
All versions, or not specified · source: NVD
AF
Ar8035 Firmware · Qualcomm
All versions, or not specified · source: NVD
AF
Ar9380 Firmware · Qualcomm
All versions, or not specified · source: NVD
CF
Csr8811 Firmware · Qualcomm
All versions, or not specified · source: NVD
CF
Csra6620 Firmware · Qualcomm
All versions, or not specified · source: NVD
CF
Csra6640 Firmware · Qualcomm
All versions, or not specified · source: NVD
CF
Csrb31024 Firmware · Qualcomm
All versions, or not specified · source: NVD
IF
Ipq4018 Firmware · Qualcomm
All versions, or not specified · source: NVD
IF
Ipq4028 Firmware · Qualcomm
All versions, or not specified · source: NVD
IF
Ipq4029 Firmware · Qualcomm
All versions, or not specified · source: NVD
IF
Ipq5010 Firmware · Qualcomm
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-1903
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-1903
Vendor Advisory
https://www.qualcomm.com/company/product-security/bulletins/november-2021-bulletin
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