What is CVE-2026-26951?

CVE-2026-26951 is a medium-severity vulnerability in Dell Data_domain_operating_system, classified under Stack-based Buffer Overflow. CVSS score: 6.7/10. Published 2026-04-20.

How severe is CVE-2026-26951?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Buffer overflow in Dell Data_domain_operating_system

CVE-2026-26951

Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.6, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 release versions 7.13.1.0 through 7.13.1.60 contain a stack-based buffer overflow vulnerability. A high privileged attac…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (3.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

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

Frequently asked questions

What is CVE-2026-26951?: CVE-2026-26951 is a medium-severity vulnerability in Dell Data_domain_operating_system, classified under Stack-based Buffer Overflow. CVSS score: 6.7/10. Published 2026-04-20.
How severe is CVE-2026-26951?: Medium severity. CVSS v3 base score is 6.7 out of 10.