CVE-2021-1943

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-07-13 · updated 2026-06-17
Weakness: CWE-125

Description

Possible buffer out of bound read can occur due to improper validation of TBTT count and length while parsing the beacon response in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking

Affected products

Qualcomm Apq8053 Firmware: all versions
Qualcomm Aqt1000 Firmware: all versions
Qualcomm Ar9380 Firmware: all versions
Qualcomm Csr8811 Firmware: all versions
Qualcomm Csrb31024 Firmware: all versions
Qualcomm Ipq4018 Firmware: all versions
Qualcomm Ipq4019 Firmware: all versions
Qualcomm Ipq4028 Firmware: all versions
Qualcomm Ipq4029 Firmware: all versions
Qualcomm Ipq5010 Firmware: all versions
Qualcomm Ipq5018 Firmware: all versions
Qualcomm Ipq5028 Firmware: all versions
Qualcomm Ipq6000 Firmware: all versions
Qualcomm Ipq6005 Firmware: all versions
Qualcomm Ipq6010 Firmware: all versions
Qualcomm Ipq6018 Firmware: all versions
Qualcomm Ipq6028 Firmware: all versions
Qualcomm Ipq8064 Firmware: all versions
Qualcomm Ipq8065 Firmware: all versions
Qualcomm Ipq8068 Firmware: all versions
Qualcomm Ipq8070 Firmware: all versions
Qualcomm Ipq8070A Firmware: all versions
Qualcomm Ipq8071 Firmware: all versions
Qualcomm Ipq8071A Firmware: all versions
Qualcomm Ipq8072 Firmware: all versions
Qualcomm Ipq8072A Firmware: all versions
Qualcomm Ipq8074 Firmware: all versions
Qualcomm Ipq8074A Firmware: all versions
Qualcomm Ipq8076 Firmware: all versions
Qualcomm Ipq8076A Firmware: all versions

References

Get alerted when CVE-2021-1943 or the next vulnerability affects your stack