CVE-2026-67271CWE-787

CVE-2026-67271

Critical · published August 18, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
57.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00831 · 57.1th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-08-18T21:17Z
References (1)
https://www.dell.com/support/kbdoc/en-us/000497829/dsa-2026-330-dell-powerstore-t-security-update-for-multiple-vulnerabilities · [email protected]
EPSS history
Timeline
  • 18 AUG 16:44Z
    Dell PowerStore SDNAS, contains an Out-of-bounds Write vulnerability in the SMB/CIFS
    cvelistv5