Review reviewHigh

CVE-2026-56086

Dell PowerProtect Data Domain, data domain operating system

Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.6, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 release version 8.3.1.0 through 8.3.1.30, LTS2024 release versions 7.13.1.0 through 7.13.1.70 contain an Incorrect Authorization vulnerability. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access.

CVSS: 8.8
EPSS: 0.29%
CISA KEV: Not listed
Published: 2026.07.08

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.29%

Technical severityCVSS 8.8

Vulnerability overview

Affected product and versions

Product: Dell PowerProtect Data Domain, data domain operating system
Affected versions: >= 7.7.1.0 < 7.13.1.80, >= 7.14.0.0 < 8.3.1.40, >= 8.4.0.0 < 8.6.1.20
Fixed versions: 7.13.1.80, 8.3.1.40, 8.6.1.20

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Dell PowerProtect Data Domain, data domain operating system and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-863