High 8.4Known exploited (CISA KEV)Published May 7, 2021

CVE-2021-1905Possible use after free due to improper handling of memory mapping of multiple processes simultaneously.

Updated under an hour ago (Oct 27, 2026, 1:40 AM ET)

Does this affect you?

It affects Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables and 59 other products. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Nov 3, 2021; federal agencies had to remediate by May 3, 2022. Treat that date as your deadline.

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Every CVE for Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

Exploited in the last 30 days

Possible use after free due to improper handling of memory mapping of multiple processes simultaneously. in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

CVSS: 8.4 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-416
Known exploited: Added to CISA KEV Nov 3, 2021; federal remediation due May 3, 2022Apply updates per vendor instructions.
EPSS (exploitation in the next 30 days): 1.54% (percentile 75)
Assigned by: qualcomm
NVD analysis: Analyzed
Record last updated: Oct 21, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables qualcomm:snapdragon_auto_snapdragon_compute_snapdragon_connectivity_snapdragon_consumer_iot_snapdragon_industrial_iot_snapdragon_mobile_snapdragon_voice_and_music_snapdragon_wearables (from the name)	APQ8009, APQ8009W, APQ8017, APQ8053, APQ8064AU, APQ8096AU, AQT1000, AR8031, AR8035, AR8151, CSRA6620, CSRA6640, FSM10055, FSM10056, MDM9206, MDM9607, MDM9626, MDM9628, MDM9650, MSM8909W, MSM8917, MSM8953, MSM8996AU, PM215, PM3003A, PM4125, PM4250, PM439, PM456, PM6125, PM6150, PM6150A, PM6150L, PM6250, PM6350, PM640A, PM640L, PM640P, PM660, PM660A, PM660L, PM670, PM670A, PM670L, PM7150A, PM7150L, PM7250, PM7250B, PM8004, PM8005, PM8008, PM8009, PM8150, PM8150A, PM8150B, PM8150C, PM8150L, PM8250, PM8350, PM8350B, PM8350BH, PM8350C, PM855, PM855A, PM855B, PM855L, PM855P, PM8909, PM8916, PM8937, PM8953, PM8998, PMC1000H, PMD9607, PMD9655, PME605, PMI632, PMI8937, PMI8952, PMI8998, PMK8002, PMK8003, PMK8350, PMM6155AU, PMM8155AU, PMM8195AU, PMM855AU, PMM8920AU, PMM8996AU, PMR525, PMR735A, PMR735B, PMW3100, PMX20, PMX24, PMX50, PMX55, QAT3514, QAT3516, QAT3518, QAT3519, QAT3522, QAT3550, QAT3555, QAT5515, QAT5516, QAT5522, QAT5533, QAT5568, QBT1000, QBT1500, QBT2000, QCA4020, QCA6174, QCA6174A, QCA ...[truncated*]	CNA record
qualcomm apq8009_firmware qualcomm:apq8009_firmware	all versions	NVD
qualcomm apq8009w_firmware qualcomm:apq8009w_firmware	all versions	NVD
qualcomm apq8017_firmware qualcomm:apq8017_firmware	all versions	NVD
qualcomm apq8053_firmware qualcomm:apq8053_firmware	all versions	NVD
qualcomm apq8064au_firmware qualcomm:apq8064au_firmware	all versions	NVD
qualcomm apq8096au_firmware qualcomm:apq8096au_firmware	all versions	NVD
qualcomm aqt1000_firmware qualcomm:aqt1000_firmware	all versions	NVD
qualcomm ar8031_firmware qualcomm:ar8031_firmware	all versions	NVD
qualcomm ar8035_firmware qualcomm:ar8035_firmware	all versions	NVD
1–10 of 60

References

References

https://www.qualcomm.com/company/product-security/bulletins/may-2021-bulletin	x-refsource-confirm, patch, vendor-advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1905	us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.