CVE-2021-3453 (GCVE-0-2021-3453)
Vulnerability from cvelistv5 – Published: 2021-07-16 20:30 – Updated: 2025-12-16 17:56
VLAI?
Summary
Some Lenovo Notebook, ThinkPad, and Lenovo Desktop systems have BIOS modules unprotected by Intel Boot Guard that could allow an attacker with physical access the ability to write to the SPI flash storage.
Severity ?
6.8 (Medium)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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Credits
Lenovo thanks Binarly efiXplorer team for reporting these issues.
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"id": "CVE-2021-3453",
"lastModified": "2024-11-21T06:21:34.380",
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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