CVE-2019-5531

high-risk

Published 2019-09-18

VMware vSphere ESXi (6.7 prior to ESXi670-201810101-SG, 6.5 prior to ESXi650-201811102-SG, and 6.0 prior to ESXi600-201807103-SG) and VMware vCenter Server (6.7 prior to 6.7 U1b, 6.5 prior to 6.5 U2b, and 6.0 prior to 6.0 U3j) contain an information disclosure vulnerability in clients arising from insufficient session expiration. An attacker with physical access or an ability to mimic a websocket connection to a user’s browser may be able to obtain control of a VM Console after the user has logged out or their session has timed out.

Do I need to act?

0.38% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.4/10 Medium

NETWORK / LOW complexity

Affected Products (20)

Esxi

Vsphere Esxi

Affected Vendors

Vmware

References (2)

http://www.vmware.com/security/advisories/VMSA-2019-0013.html

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high-risk

Severity 21/34 · High

Exploitability 1/34 · Minimal

Exposure 28/34 · Critical