Improper input validation in Intel Ethernet ixgbe driver for Linux
Priority LOW 25CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 2 fixed, 3 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 may allow an authenticated user to potentially enable denial of service via local access.
Why it matters now
EPSS 0.00308 23rd percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 2 fixed, 3 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Intel(R) Ethernet ixgbe driver for Linux | before version 3.17.3 | — | No fix listed | CNA |
- Intel(R) Ethernet ixgbe driver for Linux Vendor— Affected before version 3.17.3 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:intel:ethernet_500_series_controllers_driver:*:*:*:*:*:linux:*:* | before 3.17.3 | Vulnerable | Intel |
| cpe:2.3:h:intel:ethernet_connection_x540:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:h:intel:ethernet_connection_x550:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
| cpe:2.3:h:intel:ethernet_connection_x557:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Intel |
- cpe:2.3:a:intel:ethernet_500_series_controllers_driver:*:*:*:*:*:linux:*:* Versions before 3.17.3 Vulnerable ·Intel
- cpe:2.3:h:intel:ethernet_connection_x540:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:h:intel:ethernet_connection_x550:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
- cpe:2.3:h:intel:ethernet_connection_x557:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Intel
Remediation
Red Hat 1 advisory
- RHSA-2021:4356 Released 2021-11-09 · Red Hat rating Moderatekernel security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-348.el8
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-348.el8, kernel-4.18.0-348.el8, kernel-abi-stablelists-4.18.0-348.el8 +19
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2021:4356 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2021:4356 |
Not affected: 1 product
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2021-33098
- 2026-10-03 Alias added: GHSA-m2q2-cqf3-9j32
- 2026-11-07 Affected versions changed · Red Hat
References
Sources
- CVE-2021-33098 · CVE Program
- CVE-2021-33098 · NVD
- FIRST EPSS
- GHSA-m2q2-cqf3-9j32 · GitHub Advisory Database · CC BY 4.0
- CVE-2021-33098 · Red Hat security data · CC BY 4.0
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