Insufficient granularity of access control in UEFI firmware in some Intel(R) processors…
Priority LOW 29CWE-1220Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 2 fixed, 1 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.
Summary
Insufficient granularity of access control in UEFI firmware in some Intel(R) processors may allow a authenticated user to potentially enable denial of service via local access.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00216 12th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 2 fixed, 1 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-2025:7043 Released 2025-05-13 · Red Hat rating Moderatemicrocode_ctl security update
- Red Hat Enterprise Linux BaseOS (v. 9) microcode_ctl-4:20250211-1.el9_6
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | — |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2025:7043 |
Not affected: 1 product
- Red Hat Enterprise Linux 10
Timeline
- 2026-10-02 Threatist record created from CVE-2024-39279
- 2026-10-03 Alias added: GHSA-pw2v-hvc7-4w3q
Sources
- CVE-2024-39279 · CVE Program
- CVE-2024-39279 · NVD
- FIRST EPSS
- GHSA-pw2v-hvc7-4w3q · GitHub Advisory Database · CC BY 4.0
- CVE-2024-39279 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences