CVE-2021-1905
Qualcomm Multiple Chipsets Use-After-Free Vulnerability
CVSS
—
No CVSS
EPSS
1.5%
p74
KEV
YES
Nov 3, 2021
Exploit Today
72
0-100
Published: — · Last modified: —
1.5%EPSS · 30 days1.5%
2026-09-162026-10-14
Product
Qualcomm / Multiple Chipsets
Vulnerability
Qualcomm Multiple Chipsets Use-After-Free Vulnerability
Added to KEV
Nov 3, 2021
Remediate by
May 3, 2022
Known ransomware use
No
Summary description
Multiple Qualcomm Chipsets contain a use after free vulnerability due to improper handling of memory mapping of multiple processes simultaneously.
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2021-1905
CVECVSSEPSSKEVRExploitTitleMod.
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KEV—69Qualcomm Multiple Chipsets Use-After-Free Vulnerability—CVE-2025-21479—57.0%
KEV—67Qualcomm Multiple Chipsets Incorrect Authorization Vulnerability—CVE-2023-33106—55.2%
KEV—67Qualcomm Multiple Chipsets Use of Out-of-Range Pointer Offset Vulnerability—CVE-2023-33107—53.5%
KEV—66Qualcomm Multiple Chipsets Integer Overflow Vulnerability—CVE-2023-33063—50.9%
KEV—65Qualcomm Multiple Chipsets Use-After-Free Vulnerability—