CVE-2021-1932

Unauthorized VM memory access via improper controls

Published Oct 20, 2021 · Updated Aug 3, 2024

Improper access control in Qualcomm Snapdragon QTEE allows local users to access CDSP or ADSP virtual-machine memory without privileges. The trusted application environment fails to enforce access controls around that memory, but Qualcomm has not disclosed the affected interface or failing authorization check. Local code execution is required; successful access can expose or alter protected VM memory and interrupt its operation.

CVSS severity8.4
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Qualcomm Snapdragon QTEE allows local users to access CDSP or ADSP virtual-machine memory without privileges. The trusted application environment fails to enforce access controls around that memory, but Qualcomm has not disclosed the affected interface or failing authorization check. Local code execution is required; successful access can expose or alter protected VM memory and interrupt its operation.

The record

CVE
CVE-2021-1932
Published
Oct 20, 2021
Updated
Aug 3, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-284
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 20, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=AQT1000, AR8035, QCA6390, QCA6420, QCA6430, QCA6574A, QCA6574AU, QCA6595, QCA6595AU, QCA6696, QCA9984, QCM2290, QCM4290, QCS2290, QCS405, QCS410, QCS4290, QCS610, SA6155P, SA8150P, SA8155, SA8155P, SA8195P, SD 675, SD 8C, SD 8CX, SD460, SD480, SD662, SD675, SD678, SD720G, SD730, SD7c, SD855, SD888 5G, SDM830, SDX24, SDX50M, SDX55, SDX55M, SM4125, SM6250, SM6250P, WCD9340, WCD9341, WCD9360, WCD9370, WCD9371, WCD9375, WCD9380, WCD9385, WCN3910, WCN3950, WCN3980, WCN3988, WCN3990, WCN3991, WCN3998, WCN3999, WCN6850, WHS9410, WSA8810, WSA8815

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=AQT1000, AR8035, QCA6390, QCA6420, QCA6430, QCA6574A, QCA6574AU, QCA6595, QCA6595AU, QCA6696, QCA9984, QCM2290, QCM4290, QCS2290, QCS405, QCS410, QCS4290, QCS610, SA6155P, SA8150P, SA8155, SA8155P, SA8195P, SD 675, SD 8C, SD 8CX, SD460, SD480, SD662, SD675, SD678, SD720G, SD730, SD7c, SD855, SD888 5G, SDM830, SDX24, SDX50M, SDX55, SDX55M, SM4125, SM6250, SM6250P, WCD9340, WCD9341, WCD9360, WCD9370, WCD9371, WCD9375, WCD9380, WCD9385, WCN3910, WCN3950, WCN3980, WCN3988, WCN3990, WCN3991, WCN3998, WCN3999, WCN6850, WHS9410, WSA8810, WSA8815

Published CVSS scores

7.2NIST NVDAV:L/AC:L/Au:N/C:C/I:C/A:C
8.4QualcommCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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