Vulnerability · Published Aug 18, 2026 · Assigned by dell
CVE-2026-67271
Critical 9.8
In plain English
A critical-severity out-of-bounds write in PowerStore 1000T from Dell. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 58% of all known vulnerabilities).
Official description
Dell PowerStore SDNAS, contains an Out-of-bounds Write vulnerability in SMB/CIFS. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to denial of service and remote execution. This is a Critical vulnerability as a remote user could send a specially crafted SMB packet and cause a crash, that is persistent in case automatic restarts are enabled. Additionally, a more sophisticated attacker could use the same vulnerability for remote code execution.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Dell | PowerStore 500T | 0 – before 5.0.0.2-2761110 or later |
| Dell | PowerStore 1000T | 0 – before 5.0.0.2-2761110 or later |
| Dell | PowerStore 1200T | 0 – before 5.0.0.2-2761110 or later |
| Dell | PowerStore 3000T | 0 – before 5.0.0.2-2761110 or later |
| Dell | PowerStore 3200Q | 0 – before 5.0.0.2-2761110 or later |
| Dell | PowerStore 3200T | 0 – before 5.0.0.2-2761110 or later |
| Dell | PowerStore 5000T | 0 – before 5.0.0.2-2761110 or later |
| Dell | PowerStore 5200Q | 0 – before 5.0.0.2-2761110 or later |
| Dell | PowerStore 5200T | 0 – before 5.0.0.2-2761110 or later |
| Dell | PowerStore 7000T | 0 – before 5.0.0.2-2761110 or later |
| Dell | PowerStore 9000T | 0 – before 5.0.0.2-2761110 or later |
| Dell | PowerStore 9200T | 0 – before 5.0.0.2-2761110 or later |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H