Intel Processor Vulnerabilities (November 2026)
ANSSI reports multiple vulnerabilities across various Intel processors that may lead to arbitrary code execution, privilege escalation, or data compromise.
Triage facts
Revision 1- Applicability
- Intel Processors
- Evidence
- Unknown
- Severity
- High
- Action
- Elevated
- Sources
- 25 public sources
- Freshness
- Revision 1Nov 12, 16:27 UTC
- Source quality
- A1Likely
The French National Cybersecurity Agency (ANSSI) has issued an advisory regarding a large set of vulnerabilities identified in Intel processors. These issues were documented by Intel in 24 separate security bulletins published on November 10, 2026. The identified vulnerabilities can lead to various security impacts, including arbitrary code execution, privilege escalation, denial of service, and unauthorized access to sensitive data.
Impact
Successful exploitation may lead to unauthorized data access, security policy bypass, arbitrary code execution, and system-wide denial of service conditions. The exact impact depends on the specific vulnerability within the affected Intel processor models.
Recommendation
Review the Intel security advisories listed in the documentation section to identify the specific processor models and firmware or microcode updates required for your environment. Prioritize the application of firmware and BIOS updates provided by hardware vendors as recommended by Intel.
Mitigations
Consult the Intel Security Center advisories to determine if firmware or microcode updates are available for your specific hardware configurations.
Multiple Intel processor vulnerabilities