Dell PowerStore is a widely deployed enterprise storage appliance; an unauthenticated RCE/DoS can disrupt operations and data access across organizations.
CVE-2026-67271
Unauthenticated SMB OOB write in Dell PowerStore SDNAS allows DoS and RCE.
Is CVE-2026-67271 being exploited?
Not confirmed. CVE-2026-67271 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.46% probability of exploitation in the next 30 days.
How severe is CVE-2026-67271?
CVE-2026-67271 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-67271?
Not known from our data. No patch reference has been recorded for CVE-2026-67271, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-67271 affect?
CVE-2026-67271 affects Dell PowerStore SDNAS. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-67271?
Isolate/block SMB access, monitor SMB traffic, and apply vendor patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote attacker can send crafted SMB packets to cause persistent appliance crash (DoS) or achieve remote code execution, disrupting storage and data access.
Immediate action required
- affected< 5.0.0.2-2761110 or later
- affected< 5.0.0.2-2761110 or later
- affected< 5.0.0.2-2761110 or later
- affected< 5.0.0.2-2761110 or later
- affected< 5.0.0.2-2761110 or later
- affected< 5.0.0.2-2761110 or later
- affected< 5.0.0.2-2761110 or later
- affected< 5.0.0.2-2761110 or later
- affected< 5.0.0.2-2761110 or later
- affected< 5.0.0.2-2761110 or later
- affected< 5.0.0.2-2761110 or later
- affected< 5.0.0.2-2761110 or later
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.