CVE-2021-1918

Kernel information exposure via mishandled VM resources

Published Jan 3, 2022 · Updated May 22, 2025

Kernel information exposure in listed Qualcomm Snapdragon chipsets allows local users to obtain data through virtual machines. Qualcomm has not published which kernel locus mishandles virtual-machine resource allocation or the specific resource exposed. Low-privileged local access is required; no user interaction is needed, and the documented impact is limited to confidentiality.

CVSS severity6.5
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Kernel information exposure in listed Qualcomm Snapdragon chipsets allows local users to obtain data through virtual machines. Qualcomm has not published which kernel locus mishandles virtual-machine resource allocation or the specific resource exposed. Low-privileged local access is required; no user interaction is needed, and the documented impact is limited to confidentiality.

The record

CVE
CVE-2021-1918
Published
Jan 3, 2022
Updated
May 22, 2025
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-668
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 3, 2022CVE publishedPublication date reported by the CVE source.
  2. May 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=QCA6391, QCM6490, QCS6490, QRB5165, QRB5165N, SD690 5G, SD750G, SD765, SD765G, SD768G, SD778G, SD888 5G, SM7250P, SM7325P, WCD9370, WCD9375, WCD9380, WCD9385, WCN3988, WCN3991, WCN3998, WCN6750, WCN6850, WCN6851, WCN6855, WCN6856, WSA8810, WSA8815, WSA8830, WSA8835

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Qualcomm · Snapdragonversion=QCA6391, QCM6490, QCS6490, QRB5165, QRB5165N, SD690 5G, SD750G, SD765, SD765G, SD768G, SD778G, SD888 5G, SM7250P, SM7325P, WCD9370, WCD9375, WCD9380, WCD9385, WCN3988, WCN3991, WCN3998, WCN6750, WCN6850, WCN6851, WCN6855, WCN6856, WSA8810, WSA8815, WSA8830, WSA8835

Published CVSS scores

6.5Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
2.1NIST NVDAV:L/AC:L/Au:N/C:P/I:N/A:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-668Exposure of Resource to Wrong Sphere

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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