Unsigned code execution via undisclosed validation flaw
Published Apr 13, 2021 · Updated Aug 3, 2024
Unsigned code execution in Microsoft Azure Sphere allows local users to run unsigned code through an undisclosed vector. Microsoft has not published the affected OS component or the validation operation that incorrectly accepts the code. Local access is required, but privileges and user interaction are not; successful exploitation runs attacker-supplied code beyond the intended trust boundary.
Summary
What happened
Unsigned code execution in Microsoft Azure Sphere allows local users to run unsigned code through an undisclosed vector. Microsoft has not published the affected OS component or the validation operation that incorrectly accepts the code. Local access is required, but privileges and user interaction are not; successful exploitation runs attacker-supplied code beyond the intended trust boundary.
The record
- CVE
- CVE-2021-28460
- Published
- Apr 13, 2021
- Updated
- Aug 3, 2024
- Vendor
- Microsoft
- Product
- Azure Sphere
- Classifications
- Unavailable
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 13, 2021CVE publishedPublication date reported by the CVE source.
- 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.
- Affected versionversion=N/A
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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