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 attacker with local access could potentially exploit this vulnerability, leading to arbitrary command execution with root privileges.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.002 (8.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.001
Affected products
Weakness classification (CWE)
References
- www.dell.com/support/kbdoc/en-us/000450699/dsa-2026-060-security-update-for-del… (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.