Improper access control in the firmware for some Intel(R) 700 and 722 Series Ethernet…
Priority LOW 20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
Improper access control in the firmware for some Intel(R) 700 and 722 Series Ethernet Controllers and Adapters before versions 8.5 and 1.5.5 may allow a privileged user to potentially enable denial of service via local access.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.002 9th 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
- Partial
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) 700 and 722 Series Ethernet Controllers and Adapters | before versions 8.5 and 1.5.5 | — | No fix listed | CNA |
- Intel(R) 700 and 722 Series Ethernet Controllers and Adapters Vendor— Affected before versions 8.5 and 1.5.5 Fixed in — No fix listed CNA
CPE configurations NVD · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:intel:ethernet_controller_xxv710_firmware:*:*:*:*:*:*:*:* | before 8.5 | Vulnerable | Intel |
| cpe:2.3:h:intel:ethernet_controller_xxv710:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:ethernet_controller_xl710_firmware:*:*:*:*:*:*:*:* | before 8.5 | Vulnerable | Intel |
| cpe:2.3:h:intel:ethernet_controller_xl710:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:ethernet_controller_v710_firmware:*:*:*:*:*:*:*:* | before 8.5 | Vulnerable | Intel |
| cpe:2.3:h:intel:ethernet_controller_v710:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:ethernet_controller_x710_firmware:*:*:*:*:*:*:*:* | before 8.5 | Vulnerable | Intel |
| cpe:2.3:h:intel:ethernet_controller_x710:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:ethernet_network_adapter_x722da2_firmware:*:*:*:*:*:*:*:* | before 1.5.5 | Vulnerable | Intel |
| cpe:2.3:h:intel:ethernet_network_adapter_x722da2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
- cpe:2.3:o:intel:ethernet_controller_xxv710_firmware:*:*:*:*:*:*:*:* Versions before 8.5 Vulnerable ·Intel
- cpe:2.3:h:intel:ethernet_controller_xxv710:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:ethernet_controller_xl710_firmware:*:*:*:*:*:*:*:* Versions before 8.5 Vulnerable ·Intel
- cpe:2.3:h:intel:ethernet_controller_xl710:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:ethernet_controller_v710_firmware:*:*:*:*:*:*:*:* Versions before 8.5 Vulnerable ·Intel
- cpe:2.3:h:intel:ethernet_controller_v710:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:ethernet_controller_x710_firmware:*:*:*:*:*:*:*:* Versions before 8.5 Vulnerable ·Intel
- cpe:2.3:h:intel:ethernet_controller_x710:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:ethernet_network_adapter_x722da2_firmware:*:*:*:*:*:*:*:* Versions before 1.5.5 Vulnerable ·Intel
- cpe:2.3:h:intel:ethernet_network_adapter_x722da2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:intel:ethernet_network_adapter_x722da4fh_firmware:*:*:*:*:*:*:*:* | before 1.5.5 | Vulnerable | Intel |
| cpe:2.3:h:intel:ethernet_network_adapter_x722da4fh:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:o:intel:ethernet_network_adapter_x722da4g1p5_firmware:*:*:*:*:*:*:*:* | before 1.5.5 | Vulnerable | Intel |
| cpe:2.3:h:intel:ethernet_network_adapter_x722da4g1p5:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
- cpe:2.3:o:intel:ethernet_network_adapter_x722da4fh_firmware:*:*:*:*:*:*:*:* Versions before 1.5.5 Vulnerable ·Intel
- cpe:2.3:h:intel:ethernet_network_adapter_x722da4fh:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:o:intel:ethernet_network_adapter_x722da4g1p5_firmware:*:*:*:*:*:*:*:* Versions before 1.5.5 Vulnerable ·Intel
- cpe:2.3:h:intel:ethernet_network_adapter_x722da4g1p5:-:*:*:*:*:*:*:* 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-2021-33126
- 2026-10-03 Alias added: GHSA-8f6q-9972-q659
References
Sources
- CVE-2021-33126 · CVE Program
- CVE-2021-33126 · NVD
- FIRST EPSS
- GHSA-8f6q-9972-q659 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences