Local privilege escalation via improper firmware buffer restriction
Published Aug 18, 2022 · Updated Feb 18, 2025
Improper buffer restriction in Intel NUC Laptop Kits before BC0076 allows privileged local users to escalate privileges through firmware. Intel identifies the affected firmware and buffer-boundary failure but has not disclosed the component, input, or operation that exceeds the intended bounds. Exploitation requires existing high privileges and local access; successful exploitation elevates authority beyond the caller's existing privileged role.
Summary
What happened
Improper buffer restriction in Intel NUC Laptop Kits before BC0076 allows privileged local users to escalate privileges through firmware. Intel identifies the affected firmware and buffer-boundary failure but has not disclosed the component, input, or operation that exceeds the intended bounds. Exploitation requires existing high privileges and local access; successful exploitation elevates authority beyond the caller's existing privileged role.
The record
- CVE
- CVE-2022-28858
- Published
- Aug 18, 2022
- Updated
- Feb 18, 2025
- Vendor
- Intel Corporation
- Product
- Intel NUC Laptop Kits
- Classifications
- CWE-119, T1068
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Aug 18, 2022CVE publishedPublication date reported by the CVE source.
- Feb 18, 2025Record 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=before version BC0076
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
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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