CVE-2021-41375

Local disclosure of sensitive device information

Published Nov 10, 2021 · Updated Aug 19, 2026

Information disclosure in Microsoft Azure Sphere 20.00 through 22.06 allows local users to read sensitive device information. Microsoft has not published the affected component, the information exposed, or the operation that discloses it. Exploitation requires high privileges on the device, needs no user interaction, and affects confidentiality without reported integrity or availability impact.

CVSS severity4.4
Medium
EPSS probability0.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Microsoft Azure Sphere 20.00 through 22.06 allows local users to read sensitive device information. Microsoft has not published the affected component, the information exposed, or the operation that discloses it. Exploitation requires high privileges on the device, needs no user interaction, and affects confidentiality without reported integrity or availability impact.

The record

CVE
CVE-2021-41375
Published
Nov 10, 2021
Updated
Aug 19, 2026
Vendor
Microsoft
Product
Azure Sphere
Classifications
Unavailable
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Nov 10, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 2026Record 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=20.00 <22.07

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Microsoft · Azure Sphereversion=20.00 <22.07

Published CVSS scores

2.1NIST NVDAV:L/AC:L/Au:N/C:P/I:N/A:N
4.4Microsoft CorporationCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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