Skip to content
Fencer Intel
critical 9.8

CVE-2018-1000155 json

OpenFlow version 1.0 onwards contains a Denial of Service and Improper authorization vulnerability in OpenFlow handshake: The DPID (DataPat…

published 8y ago modified 4mo ago also EUVD-2018-1861

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 67%
public exploits
0
none known

Summary

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.

Is CVE-2018-1000155 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-1000155 updated cvss 5.9

openflow: Denial of Service, Improper Authentication and Authorization, and Covert Channel in the OpenFlow handshake

  • Red Hat OpenStack Platform 8 (Liberty) opendaylight Red Hat OpenStack Platform 9 (Mitaka) opendaylight Red Hat OpenStack Platform 10 (Newton) opendaylight Red Hat OpenStack Platform 11 (Ocata) opendaylight Red Hat OpenStack Platform 12 (Pike) opendaylight Red Hat OpenStack Platform 13 (Queens) opendaylight
    affected: workaround, no fix planned “Enable TLS in OpenFlow plugin. Upstream documentation is a useful resource. https://wiki.opendaylight.org/view/OpenDaylight_OpenFlow_Plugin:_TLS_Support”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.17% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.