CVE-2026-26951

Description

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.

CVSS v3.1 Score

6.7

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0002

Probability of exploitation

0.03%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-121 CWE-121

Affected Products

Vendor	Product	Versions
dell	powerprotect_dp_series_appliance	< 2.7.9
dell	data_domain_operating_system	7.7.1.0 — 7.13.1.70
dell	data_domain_operating_system	8.3.1.0 — 8.3.1.30
dell	data_domain_operating_system	8.4.0.0 — 8.6.1.0

References

Advisories & Patches

https://www.dell.com/support/kbdoc/en-us/000450699/dsa-2026-060-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 6.7 (MEDIUM).

How severe is CVE-2026-26951? +

CVE-2026-26951 has a CVSS v3.1 score of 6.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0002, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-26951? +

CVE-2026-26951 affects products from dell, specifically: data_domain_operating_system, powerprotect_dp_series_appliance. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-26951? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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