Protection mechanism failure in Intel Processors
Priority LOW 30CWE-693Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · None · High
- 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. Impact type from CWE-693.
Summary
Protection mechanism failure of bus lock regulator for some Intel(R) Processors may allow an unauthenticated user to potentially enable denial of service via network access.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00757 55th 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) Processors | See references | — | No fix listed | CNA |
- Intel(R) Processors 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-2023-39368
- 2026-10-03 Alias added: GHSA-pvrq-gg3w-f695
References
Sources
- CVE-2023-39368 · CVE Program
- CVE-2023-39368 · NVD
- FIRST EPSS
- GHSA-pvrq-gg3w-f695 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-39368 · Red Hat security data · CC BY 4.0
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