Cyber Resilience

CVE-2021-21528

High

Published: 12 November 2021

Published
12 November 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0027 51.1th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-21528 is a high-severity Exposure of Information Through Directory Listing (CWE-548) vulnerability in Dell Emc Powerscale Onefs. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 48.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Dell EMC PowerScale OneFS versions 9.1.0, 9.2.0.x, 9.2.1.x contain an Exposure of Information through Directory Listing vulnerability. This vulnerability is triggered when upgrading from a previous versions.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

dell
emc powerscale onefs
9.1.0.0, 9.2.0.0, 9.2.1.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-548

Detects information exposure through directory listings as unauthorized disclosure.

addresses: CWE-548

Directory listings and resource enumeration can be suppressed or populated with misleading entries.

addresses: CWE-548

Reduces exposure via directory listings or accessible files when OPSEC restricts visibility of key organizational resources.

References