Local privileged disclosure of unspecified data
Published Aug 12, 2021 · Updated Aug 10, 2026
Information disclosure in Microsoft Azure Sphere 20.00 and later, before 21.07, allows local users with high privileges to read data. Microsoft has not published the affected Azure Sphere OS component, the data exposed, or the operation that discloses it. Exploitation requires local access with high privileges, and the reported consequence is limited to confidentiality loss.
Summary
What happened
Information disclosure in Microsoft Azure Sphere 20.00 and later, before 21.07, allows local users with high privileges to read data. Microsoft has not published the affected Azure Sphere OS component, the data exposed, or the operation that discloses it. Exploitation requires local access with high privileges, and the reported consequence is limited to confidentiality loss.
The record
- CVE
- CVE-2021-26428
- Published
- Aug 12, 2021
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Azure Sphere
- Classifications
- Unavailable
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Aug 12, 2021CVE publishedPublication date reported by the CVE source.
- Aug 10, 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.
- Affected versionversion=20.00 <21.07
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
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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