$ cve CVE-2017-2637 JSON

CVE-2017-2637

9.9

CRITICAL · CVSS 3.0 · EPSS 4.6% (pctl 91)

In your normal cycle

Critical by CVSS (9.9), but no sign of active exploitation.

Description

A design flaw issue was found in the Red Hat OpenStack Platform director use of TripleO to enable libvirtd based live-migration. Libvirtd is deployed by default (by director) listening on 0.0.0.0 (all interfaces) with no-authentication or encryption. Anyone able to make a TCP connection to any compute host IP address, including 127.0.0.1, other loopback interface addresses, or in some cases possibly addresses that have been exposed beyond the management interface, could use this to open a virsh session to the libvirtd instance and gain control of virtual machine instances or possibly take over the host.

Scoring

CVSS	9.9 (CRITICAL, v3.0)
Vector	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
EPSS	4.6% — more likely to be exploited than 91% of all CVEs
Weakness	CWE-306
On CISA KEV	no
Public exploit	none known
Published	2018-07-26
Last modified	2026-06-17

Affected (1)

Vendor	Product
redhat	openstack

References

→ the Explorer · watch your stack · NVD