Is CVE-2021-36305 actively exploited?

CVE-2021-36305 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-36305?

CVE-2021-36305 has a CVSS score of 6.5 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2021-36305?

Patch guidance is available from dell security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-36305.

CVE-2021-36305 - remediation guidance & executive summary

Q: Which products are affected by CVE-2021-36305?

8 products: dell emc powerscale onefs, dell emc powerscale onefs, dell emc powerscale onefs, dell emc powerscale onefs, dell emc powerscale onefs, and 3 more.

Description

Dell PowerScale OneFS contains an Unsynchronized Access to Shared Data in a Multithreaded Context in SMB CA handling. An authenticated user of SMB on a cluster with CA could potentially exploit this vulnerability, leading to a denial of service over SMB.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-662

Metadata

Primary Vendor: DELL
Published: 11/12/2021
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

dell : emc_powerscale_onefsdell : emc_powerscale_onefsdell : emc_powerscale_onefsdell : emc_powerscale_onefsdell : emc_powerscale_onefsdell : emc_powerscale_onefsdell : emc_powerscale_onefsdell : emc_powerscale_onefs

Remediation Guidance

Executive Summary

Cite this page

CVE-2021-36305. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2021-36305

View on NIST NVD

CVE-2021-36305 vulnerability