Meltdown and Spectre exploit vulnerabilities in processors

Meltdown and Spectre are attacks that exploit speculative execution, the way processors predict commands. Meltdown and Spectre exploit the way speculatively executed instructions can bypass process memory protection. These vulnerabilities are particularly harmful to multi-user server environments, giving malicious users access to users’ confidential information.

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  • Servers and server applications
  • Workstations and end-user applications
  • Network devices
  • Mobile communications systems
  • Embedded systems
  • Others


  • Servers and server applications
  • Workstations and end-user applications
Further information +

Attack vector

  • Locally
  • Remote
Further information on the access vector +


  • Obtaining of confidential information
  • Security bypass
Further information on the impact +


  • Software update patch
  • Restriction of the problem
  • No update
Further information on the remediation +

Vulnerable software:

Possible solutions and restrictive measures:

Further information:

Update history

Key words: Information security , Cyber security , Server , Zero-day vulnerability , Vulnerabilities

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The Finnish Communications Regulatory Authority (FICORA)

The National Cyber Security Centre Finland (NCSC-FI)

Itämerenkatu 3 A

P.O. Box 313


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