CVE-2021-1904

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-09-08 · updated 2026-06-17
Weakness: CWE-697

Description

Child process can leak information from parent process due to numeric pids are getting compared and these pid can be reused in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, 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 Apq8064Au Firmware: all versions
Qualcomm Apq8076 Firmware: all versions
Qualcomm Apq8096Au Firmware: all versions
Qualcomm Aqt1000 Firmware: all versions
Qualcomm Ar8031 Firmware: all versions
Qualcomm Ar8035 Firmware: all versions
Qualcomm Csr6030 Firmware: all versions
Qualcomm Csra6620 Firmware: all versions
Qualcomm Csra6640 Firmware: all versions
Qualcomm Csrb31024 Firmware: all versions
Qualcomm Fsm10055 Firmware: all versions
Qualcomm Fsm10056 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 Mdm9640 Firmware: all versions
Qualcomm Mdm9650 Firmware: all versions
Qualcomm Msm8909W Firmware: all versions
Qualcomm Msm8917 Firmware: all versions
Qualcomm Msm8953 Firmware: all versions
Qualcomm Msm8996Au Firmware: all versions
Qualcomm Qca4020 Firmware: all versions
Qualcomm, Inc. QCA6174_9377.WIN.1.0: all versions

References

Get alerted when CVE-2021-1904 or the next vulnerability affects your stack