CVE-2021-1977

Severity: critical (CVSS 9.1 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: 2021-10-20 · updated 2026-06-17
Weakness: CWE-125

Description

Possible buffer over read due to improper validation of frame length while processing AEAD decryption during ASSOC response in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music

Affected products

Qualcomm Apq8009 Firmware: all versions
Qualcomm Apq8017 Firmware: all versions
Qualcomm Apq8053 Firmware: all versions
Qualcomm Apq8064Au Firmware: all versions
Qualcomm Apq8096Au Firmware: all versions
Qualcomm Ar8031 Firmware: all versions
Qualcomm Ar8035 Firmware: all versions
Qualcomm Csra6620 Firmware: all versions
Qualcomm Csra6640 Firmware: all versions
Qualcomm Csrb31024 Firmware: all versions
Qualcomm Mdm9150 Firmware: all versions
Qualcomm Mdm9206 Firmware: all versions
Qualcomm Mdm9250 Firmware: all versions
Qualcomm Mdm9607 Firmware: all versions
Qualcomm Mdm9626 Firmware: all versions
Qualcomm Mdm9628 Firmware: all versions
Qualcomm Mdm9650 Firmware: all versions
Qualcomm Msm8953 Firmware: all versions
Qualcomm Msm8996Au Firmware: all versions
Qualcomm Qca4020 Firmware: all versions
Qualcomm Qca6174A Firmware: all versions
Qualcomm Qca6175A Firmware: all versions
Qualcomm Qca6310 Firmware: all versions
Qualcomm Qca6320 Firmware: all versions
Qualcomm Qca6335 Firmware: all versions
Qualcomm Qca6390 Firmware: all versions
Qualcomm Qca6391 Firmware: all versions
Qualcomm Qca6426 Firmware: all versions
Qualcomm Qca6436 Firmware: all versions
Qualcomm Qca6564A Firmware: all versions

References

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