Information disclosure or service interruption via out-of-bounds read
Published Feb 9, 2022 · Updated May 5, 2025
An out-of-bounds read in the memory subsystem of Intel Atom Processors allows local users to disclose data or interrupt service. Under an undisclosed complex microarchitectural condition, the memory subsystem reads beyond its intended bounds. Access requires low privileges and high attack complexity; disclosure is limited to memory data, while availability impact is a service interruption.
Summary
What happened
An out-of-bounds read in the memory subsystem of Intel Atom Processors allows local users to disclose data or interrupt service. Under an undisclosed complex microarchitectural condition, the memory subsystem reads beyond its intended bounds. Access requires low privileges and high attack complexity; disclosure is limited to memory data, while availability impact is a service interruption.
The record
- CVE
- CVE-2021-33120
- Published
- Feb 9, 2022
- Updated
- May 5, 2025
- Vendor
- Topcon Positioning Systems, Inc.
- Product
- Intel Atom Processors
- Classifications
- CWE-125
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 9, 2022CVE publishedPublication date reported by the CVE source.
- May 5, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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