What is CVE-2026-26354?

CVE-2026-26354 is a high-severity vulnerability in Dell Data_domain_operating_system, classified under Stack-based Buffer Overflow. CVSS score: 8.1/10. Published 2026-04-22.

How severe is CVE-2026-26354?

High severity. CVSS v3 base score is 8.1 out of 10.

Buffer overflow in Dell Data_domain_operating_system

CVE-2026-26354

Dell PowerProtect Data Domain with Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.6, LTS2025 release version 8.3.1.0 through 8.3.1.10, LTS2024 release versions 7.13.1.0 through 7.13.1.60, contain a stack-base…

Vulnerability class: Buffer Overflow

EPSS: 0.005 (39.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Dell Data_domain_operating_system
Dell Powerprotect Data Domain — versions 0
Dell Powerprotect_dp_series_appliance

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow
CWE-787 — Out-of-bounds Write

References

security_alert@emc.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-26354?: CVE-2026-26354 is a high-severity vulnerability in Dell Data_domain_operating_system, classified under Stack-based Buffer Overflow. CVSS score: 8.1/10. Published 2026-04-22.
How severe is CVE-2026-26354?: High severity. CVSS v3 base score is 8.1 out of 10.