What is CVE-2018-5761?

CVE-2018-5761 is a high-severity vulnerability in Rubrik Cdm, classified under Improper Certificate Validation. CVSS score: 8.1/10. Published 2018-01-22.

How severe is CVE-2018-5761?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Rubrik Cdm

CVE-2018-5761

A man-in-the-middle vulnerability related to vCenter access was found in Rubrik CDM 3.x and 4.x before 4.0.4-p2. This vulnerability might expose Rubrik user credentials configured to access vCenter as Rubrik clusters did not verify TLS certificates presented by vCenter.

Vulnerability class: Improper Certificate Validation

Published 2018-01-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (42.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Rubrik Cdm — versions 4.0.4

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

gist.github.com/srau/0ed7747953b3571247a6c485f91619ff (Third Party Advisory)
support.rubrik.com/articles/How_To/000001135 (Permissions Required)

Frequently asked questions

What is CVE-2018-5761?: CVE-2018-5761 is a high-severity vulnerability in Rubrik Cdm, classified under Improper Certificate Validation. CVSS score: 8.1/10. Published 2018-01-22.
How severe is CVE-2018-5761?: High severity. CVSS v3 base score is 8.1 out of 10.