What is CVE-2026-63688?

CVE-2026-63688 is a critical-severity vulnerability in Dell Container Storage Modules (Csm), classified under Missing Authentication for Critical Function. CVSS score: 10.0/10. Published 2026-10-06.

How severe is CVE-2026-63688?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Auth bypass in Dell Container Storage Modules (Csm)

CVE-2026-63688

Dell Container Storage Modules (CSM), versions prior to v1.18.0, contains a Missing Authentication for Critical Function vulnerability in the csm-authorization-storage gRPC server. An unauthenticated remote attacker could potentially exploit this vulnerability, leading to unauthorized access to storage backend administrator credentials for all registered storage arrays.

Vulnerability class: Broken Authentication

Published 2026-10-06 · last modified 2026-10-06.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Dell Container Storage Modules (Csm)

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

www.dell.com/support/kbdoc/en-us/000515771/dsa-2026-448-security-update-for-del… (vendor-advisory)

Frequently asked questions

What is CVE-2026-63688?: CVE-2026-63688 is a critical-severity vulnerability in Dell Container Storage Modules (Csm), classified under Missing Authentication for Critical Function. CVSS score: 10.0/10. Published 2026-10-06.
How severe is CVE-2026-63688?: Critical severity. CVSS v3 base score is 10.0 out of 10.