Improper input validation in Intel BIOS Guard firmware
Priority LOW 33CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Improper input validation in some Intel(R) BIOS Guard firmware may allow a privileged user to potentially enable escalation of privilege via local access.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00205 10th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Intel(R) BIOS Guard firmware | See references | — | No fix listed | CNA |
- Intel(R) BIOS Guard firmware Vendor— Affected See references Fixed in — No fix listed CNA
CPE names CISA-ADP · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:intel:whiskey_lake:-:*:*:*:*:*:*:* | not specified by CISA-ADP | — | Intel |
| cpe:2.3:h:intel:alder_lake:-:*:*:*:*:*:*:* | not specified by CISA-ADP | — | Intel |
| cpe:2.3:h:intel:tiger_lake:-:*:*:*:*:*:*:* | not specified by CISA-ADP | — | Intel |
| cpe:2.3:h:intel:rocket_lake:-:*:*:*:*:*:*:* | not specified by CISA-ADP | — | Intel |
| cpe:2.3:h:intel:ice_lake:-:*:*:*:*:*:*:* | not specified by CISA-ADP | — | Intel |
| cpe:2.3:h:intel:comet_lake:-:*:*:*:client:*:*:* | not specified by CISA-ADP | — | Intel |
- cpe:2.3:h:intel:whiskey_lake:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Intel
- cpe:2.3:h:intel:alder_lake:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Intel
- cpe:2.3:h:intel:tiger_lake:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Intel
- cpe:2.3:h:intel:rocket_lake:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Intel
- cpe:2.3:h:intel:ice_lake:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Intel
- cpe:2.3:h:intel:comet_lake:-:*:*:*:client:*:*:* Versions not specified by CISA-ADP — ·Intel
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-28402
- 2026-10-03 Alias added: GHSA-mp3w-c4f7-mcg6
References
Sources
- CVE-2023-28402 · CVE Program
- CVE-2023-28402 · NVD
- FIRST EPSS
- GHSA-mp3w-c4f7-mcg6 · GitHub Advisory Database · CC BY 4.0
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