Sequence of processor instructions leads to unexpected behavior in Intel(R) Core(TM)…
Priority LOW 21CWE-1281Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- 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.
Summary
Sequence of processor instructions leads to unexpected behavior in Intel(R) Core(TM) Ultra Processors may allow an 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 0.00279 20th 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) Core(TM) Ultra Processors | See references | — | No fix listed | CNA |
- Intel(R) Core(TM) Ultra 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 planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2024:9401 |
Not affected: 1 product
- Red Hat Enterprise Linux 10
Timeline
- 2026-10-02 Threatist record created from CVE-2023-46103
- 2026-10-03 Alias added: GHSA-xp8f-77p3-p5rv
References
Sources
- CVE-2023-46103 · CVE Program
- CVE-2023-46103 · NVD
- FIRST EPSS
- GHSA-xp8f-77p3-p5rv · GitHub Advisory Database · CC BY 4.0
- CVE-2023-46103 · Red Hat security data · CC BY 4.0
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