Security-control bypass via crafted SMI input
Published Sep 6, 2022 · Updated May 27, 2026
Improper authentication in Dell Client Platform BIOS allows local users to bypass security controls through crafted SMI input. Dell has not disclosed which SMI handler accepts the input or what authentication operation it performs incorrectly. Exploitation requires high local privileges; Dell identifies security-control bypass as the consequence but does not specify the controls or resulting access.
Summary
What happened
Improper authentication in Dell Client Platform BIOS allows local users to bypass security controls through crafted SMI input. Dell has not disclosed which SMI handler accepts the input or what authentication operation it performs incorrectly. Exploitation requires high local privileges; Dell identifies security-control bypass as the consequence but does not specify the controls or resulting access.
The record
- CVE
- CVE-2022-26858
- Published
- Sep 6, 2022
- Updated
- May 27, 2026
- Vendor
- Dell
- Product
- Dell Client Platform BIOS
- Classifications
- CWE-287
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Sep 6, 2022CVE publishedPublication date reported by the CVE source.
- May 27, 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?
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- Affected versionversion=unspecified <All
What conditions does exploitation require?
What is affected?
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
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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