Incorrect calculation in microcode keying mechanism for some Intel(R) Xeon(R) D…
Priority LOW 24CWE-682Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Partial Red Hat: 1 fixed, 3 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
Incorrect calculation in microcode keying mechanism for some Intel(R) Xeon(R) D Processors with Intel(R) SGX may allow a privileged user to potentially enable information disclosure via local access.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00234 14th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 1 fixed, 3 without a fix
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) Xeon(R) D Processors with Intel(R) SGX | See references | — | No fix listed | CNA |
- Intel(R) Xeon(R) D Processors with Intel(R) SGX Vendor— Affected See references Fixed in — No fix listed CNA
Remediation
Red Hat 1 advisory
- RHSA-2024:9401 Released 2024-11-12 · Red Hat rating Moderatemicrocode_ctl security update
- Red Hat Enterprise Linux BaseOS (v. 9) microcode_ctl-4:20240910-1.el9_5
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 yet |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2024:9401 |
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2023-43490
- 2026-10-03 Alias added: GHSA-vww6-323c-pxr2
References
Sources
- CVE-2023-43490 · CVE Program
- CVE-2023-43490 · NVD
- FIRST EPSS
- GHSA-vww6-323c-pxr2 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-43490 · Red Hat security data · CC BY 4.0
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