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CRITICAL · 9.8

CVE-2026-67271

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 serv...

Vulnerability 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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2026-67271?

CVE-2026-67271 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 serv...

How severe is CVE-2026-67271?

CVE-2026-67271 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-67271?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.