Dell PowerScale OneFS contains an Unsynchronized Access to Shared Data in a Multithreaded…
Priority LOW 30CWE-662Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.00832 57th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Dell | PowerScale OneFS | 8.2.0, 8.2.1, 9.0.0.x, 9.2.0.x, 9.1.1.x, 8.2.2, 9.1.0.x , 9.2.1.x | — | No fix listed | CNA |
- PowerScale OneFS VendorDell Affected 8.2.0, 8.2.1, 9.0.0.x, 9.2.0.x, 9.1.1.x, 8.2.2, 9.1.0.x , 9.2.1.x Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dell:emc_powerscale_onefs:8.2.0:*:*:*:*:*:*:* | 8.2.0 | Vulnerable | Dell |
| cpe:2.3:o:dell:emc_powerscale_onefs:8.2.1:*:*:*:*:*:*:* | 8.2.1 | Vulnerable | Dell |
| cpe:2.3:o:dell:emc_powerscale_onefs:8.2.2:*:*:*:*:*:*:* | 8.2.2 | Vulnerable | Dell |
| cpe:2.3:o:dell:emc_powerscale_onefs:9.0.0.0:*:*:*:*:*:*:* | 9.0.0.0 | Vulnerable | Dell |
| cpe:2.3:o:dell:emc_powerscale_onefs:9.1.0.0:*:*:*:*:*:*:* | 9.1.0.0 | Vulnerable | Dell |
| cpe:2.3:o:dell:emc_powerscale_onefs:9.1.1.0:*:*:*:*:*:*:* | 9.1.1.0 | Vulnerable | Dell |
| cpe:2.3:o:dell:emc_powerscale_onefs:9.2.0.0:*:*:*:*:*:*:* | 9.2.0.0 | Vulnerable | Dell |
| cpe:2.3:o:dell:emc_powerscale_onefs:9.2.1.0:*:*:*:*:*:*:* | 9.2.1.0 | Vulnerable | Dell |
- cpe:2.3:o:dell:emc_powerscale_onefs:8.2.0:*:*:*:*:*:*:* Versions 8.2.0 Vulnerable ·Dell
- cpe:2.3:o:dell:emc_powerscale_onefs:8.2.1:*:*:*:*:*:*:* Versions 8.2.1 Vulnerable ·Dell
- cpe:2.3:o:dell:emc_powerscale_onefs:8.2.2:*:*:*:*:*:*:* Versions 8.2.2 Vulnerable ·Dell
- cpe:2.3:o:dell:emc_powerscale_onefs:9.0.0.0:*:*:*:*:*:*:* Versions 9.0.0.0 Vulnerable ·Dell
- cpe:2.3:o:dell:emc_powerscale_onefs:9.1.0.0:*:*:*:*:*:*:* Versions 9.1.0.0 Vulnerable ·Dell
- cpe:2.3:o:dell:emc_powerscale_onefs:9.1.1.0:*:*:*:*:*:*:* Versions 9.1.1.0 Vulnerable ·Dell
- cpe:2.3:o:dell:emc_powerscale_onefs:9.2.0.0:*:*:*:*:*:*:* Versions 9.2.0.0 Vulnerable ·Dell
- cpe:2.3:o:dell:emc_powerscale_onefs:9.2.1.0:*:*:*:*:*:*:* Versions 9.2.1.0 Vulnerable ·Dell
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-36305
- 2026-10-03 Alias added: GHSA-wr2x-hp98-m8g3
References
More Dell Emc Powerscale Onefs vulnerabilities
- TI-2022-22190 Improper privilege management in Dell PowerScale OneFS CVSS 3.1CRITICAL 9.8
- TI-2022-10097 Dell PowerScale OneFS, versions 8.2.x-9.3.x, contain a predictable seed in pseudo-random… CVSS 3.1CRITICAL 9.8
- TI-2022-06835 Missing brute-force protection in Dell PowerScale OneFS CVSS 3.1CRITICAL 9.8
- TI-2021-04595 Improper authentication in Dell PowerScale OneFS CVSS 3.1CRITICAL 9.8
- TI-2022-22189 Improper certificate validation in Dell PowerScale OneFS CVSS 3.1CRITICAL 9.8
- TI-2022-15270 Insufficiently protected credentials in Dell PowerScale OneFS CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-36305 · CVE Program
- CVE-2021-36305 · NVD
- FIRST EPSS
- GHSA-wr2x-hp98-m8g3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences