CVE-2026-67271
Dell PowerStore SMB/CIFS Out-of-Bounds Write Vulnerability
Description
Dell PowerStore SDNAS, contains an Out-of-bounds Write vulnerability in the 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.
INFO
Published Date :
Aug. 18, 2026, 5:17 p.m.
Last Modified :
Aug. 20, 2026, 1:02 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-67271
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | c550e75a-17ff-4988-97f0-544cde3820fe | ||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | CRITICAL | MITRE-CVE |
Solution
- Apply the latest security update for Dell PowerStore SDNAS.
- Review system logs for signs of exploitation.
- Restrict SMB/CIFS access if possible.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-67271.
| URL | Resource |
|---|---|
| https://www.dell.com/support/kbdoc/en-us/000497829/dsa-2026-330-dell-powerstore-t-security-update-for-multiple-vulnerabilities |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-67271 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-67271
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-67271 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-67271 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 19, 2026
Action Type Old Value New Value Changed SSVC {'id': 'CVE-2026-67271', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-18T19:09:40.861868Z'} {'id': 'CVE-2026-67271', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-18T00:00:00+00:00'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 18, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-67271', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-18T19:09:40.861868Z'} -
New CVE Received by [email protected]
Aug. 18, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Dell', 'product': 'PowerStore 500T', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '5.0.0.2-2761110 or later', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Dell', 'product': 'PowerStore 1000T', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '5.0.0.2-2761110 or later', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Dell', 'product': 'PowerStore 1200T', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '5.0.0.2-2761110 or later', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Dell', 'product': 'PowerStore 3000T', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '5.0.0.2-2761110 or later', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Dell', 'product': 'PowerStore 3200Q', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '5.0.0.2-2761110 or later', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Dell', 'product': 'PowerStore 3200T', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '5.0.0.2-2761110 or later', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Dell', 'product': 'PowerStore 5000T', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '5.0.0.2-2761110 or later', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Dell', 'product': 'PowerStore 5200Q', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '5.0.0.2-2761110 or later', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Dell', 'product': 'PowerStore 5200T', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '5.0.0.2-2761110 or later', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Dell', 'product': 'PowerStore 7000T', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '5.0.0.2-2761110 or later', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Dell', 'product': 'PowerStore 9000T', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '5.0.0.2-2761110 or later', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Dell', 'product': 'PowerStore 9200T', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '5.0.0.2-2761110 or later', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] Added Description Dell PowerStore SDNAS, contains an Out-of-bounds Write vulnerability in the 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-787 Added Reference https://www.dell.com/support/kbdoc/en-us/000497829/dsa-2026-330-dell-powerstore-t-security-update-for-multiple-vulnerabilities