Improper access control in BIOS firmware for some Intel(R) NUCs before version…
Priority LOW 37Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Improper access control in BIOS firmware for some Intel(R) NUCs before version INWHL357.0046 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 0.00206 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) NUCs | before version INWHL357.0046 | — | No fix listed | CNA |
- Intel(R) NUCs Vendor— Affected before version INWHL357.0046 Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:intel:nuc_8_mainstream-g_kit_nuc8i7inh_firmware:*:*:*:*:*:*:*:* | before inwhl357.0046 | Vulnerable | Intel |
| cpe:2.3:h:intel:nuc_8_mainstream-g_kit_nuc8i7inh:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:nuc_8_mainstream-g_mini_pc_nuc8i7inh_firmware:*:*:*:*:*:*:*:* | before inwhl357.0046 | Vulnerable | Intel |
| cpe:2.3:h:intel:nuc_8_mainstream-g_mini_pc_nuc8i7inh:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:nuc_8_mainstream-g_kit_nuc8i5inh_firmware:*:*:*:*:*:*:*:* | before inwhl357.0046 | Vulnerable | Intel |
| cpe:2.3:h:intel:nuc_8_mainstream-g_kit_nuc8i5inh:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:nuc_8_mainstream-g_mini_pc_nuc8i5inh_firmware:*:*:*:*:*:*:*:* | before inwhl357.0046 | Vulnerable | Intel |
| cpe:2.3:h:intel:nuc_8_mainstream-g_mini_pc_nuc8i5inh:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
- cpe:2.3:o:intel:nuc_8_mainstream-g_kit_nuc8i7inh_firmware:*:*:*:*:*:*:*:* Versions before inwhl357.0046 Vulnerable ·Intel
- cpe:2.3:h:intel:nuc_8_mainstream-g_kit_nuc8i7inh:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:nuc_8_mainstream-g_mini_pc_nuc8i7inh_firmware:*:*:*:*:*:*:*:* Versions before inwhl357.0046 Vulnerable ·Intel
- cpe:2.3:h:intel:nuc_8_mainstream-g_mini_pc_nuc8i7inh:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:nuc_8_mainstream-g_kit_nuc8i5inh_firmware:*:*:*:*:*:*:*:* Versions before inwhl357.0046 Vulnerable ·Intel
- cpe:2.3:h:intel:nuc_8_mainstream-g_kit_nuc8i5inh:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:nuc_8_mainstream-g_mini_pc_nuc8i5inh_firmware:*:*:*:*:*:*:*:* Versions before inwhl357.0046 Vulnerable ·Intel
- cpe:2.3:h:intel:nuc_8_mainstream-g_mini_pc_nuc8i5inh:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-33164
- 2026-10-03 Alias added: GHSA-6pv7-xxv2-qw55
References
More Intel Nuc 8 Mainstream-g Kit Nuc8i5inh Firmware vulnerabilities
- TI-2023-13864 Improper input validation in Intel NUC BIOS firmware CVSS 3.1HIGH 7.8
- TI-2020-15029 Incorrect permission assignment in Intel NUCs CVSS 3.1HIGH 7.8
- TI-2020-09865 Insecure default variable initialization in firmware for some Intel(R) NUCs may allow an… CVSS 3.1HIGH 7.8
- TI-2020-00514 Buffer overflow in Intel NUC Firmware CVSS 3.1HIGH 7.8
- TI-2023-13236 Improper buffer restrictions for some Intel NUC BIOS firmware before version IN0048 may… CVSS 3.1HIGH 7.8
- TI-2020-09866 Improper buffer restrictions in firmware for some Intel(R) NUCs may allow a privileged… CVSS 3.1MEDIUM 6.7
Sources
- CVE-2021-33164 · CVE Program
- CVE-2021-33164 · NVD
- FIRST EPSS
- GHSA-6pv7-xxv2-qw55 · GitHub Advisory Database · CC BY 4.0
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