What is 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.
The record classifies CVE-2026-63688 under weakness class CWE-306. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 19 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 10 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - EPSS (FIRST)
- 0.7% probability of exploitation in the next 30 days, higher than 54.9% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 7.2/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-10-06
Is CVE-2026-63688 being exploited?
It currently carries a trending score of 48 in the Threadlinqs vulnerability feed.
Affected products and versions
- Dell: Container Storage Modules (CSM)
How to fix CVE-2026-63688
No vendor patch reference has been recorded for CVE-2026-63688 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-63688
1 tracked threat in the Threadlinqs corpus references CVE-2026-63688, either in the campaign’s CVE list or as an indicator on the campaign record.
Sources
Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on .