What’s Vulnerable › Vulnerabilities

CVE-2018-1000155

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-05-24 · updated 2026-06-17
• Weakness: CWE-863

Description

OpenFlow version 1.0 onwards contains a Denial of Service and Improper authorization vulnerability in OpenFlow handshake: The DPID (DataPath IDentifier) in the features_reply message are inherently trusted by the controller. that can result in Denial of Service, Unauthorized Access, Network Instability. This attack appear to be exploitable via Network connectivity: the attacker must first establish a transport connection with the OpenFlow controller and then initiate the OpenFlow handshake.

Affected products

• Opennetworking Openflow: all versions

References

• http://users.sec.t-labs.tu-berlin.de/~hashkash/openflow/BrianOnosSecurityRequest.pdf
• http://users.sec.t-labs.tu-berlin.de/~hashkash/openflow/BrianOnosSecurityRequest.pdf

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