CVE-2021-1939

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-09-17 · updated 2026-06-17
Weakness: CWE-476

Description

Null pointer dereference occurs due to improper validation when the preemption feature enablement is toggled in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Wearables

Affected products

Qualcomm Apq8009 Firmware: all versions
Qualcomm Apq8009W Firmware: all versions
Qualcomm Apq8017 Firmware: all versions
Qualcomm Apq8053 Firmware: all versions
Qualcomm Aqt1000 Firmware: all versions
Qualcomm Msm8909W Firmware: all versions
Qualcomm Msm8917 Firmware: all versions
Qualcomm Msm8953 Firmware: all versions
Qualcomm Qca4020 Firmware: all versions
Qualcomm Qca6174A Firmware: all versions
Qualcomm Qca6310 Firmware: all versions
Qualcomm Qca6335 Firmware: all versions
Qualcomm Qca6390 Firmware: all versions
Qualcomm Qca6391 Firmware: all versions
Qualcomm Qca6420 Firmware: all versions
Qualcomm Qca6421 Firmware: all versions
Qualcomm Qca6426 Firmware: all versions
Qualcomm Qca6430 Firmware: all versions
Qualcomm Qca6431 Firmware: all versions
Qualcomm Qca6436 Firmware: all versions
Qualcomm Qca6574 Firmware: all versions
Qualcomm Qca6574A Firmware: all versions
Qualcomm Qca6574Au Firmware: all versions
Qualcomm Qca6595Au Firmware: all versions
Qualcomm Qca6696 Firmware: all versions
Qualcomm Qca9377 Firmware: all versions
Qualcomm Qca9379 Firmware: all versions
Qualcomm Qcs603 Firmware: all versions
Qualcomm Qcs605 Firmware: all versions
Qualcomm Qet4101 Firmware: all versions

References

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