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CVE-2026-56086 Dell CVE debrief

CVE-2026-56086 is an Incorrect Authorization vulnerability in 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. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access. The vulnerability can be exploited remotely and has a CVSS score of 8.8, indicating a HIGH severity level.

Vendor
Dell
Product
PowerProtect Data Domain
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-08
Original CVE updated
2026-07-09
Advisory published
2026-07-08
Advisory updated
2026-07-09

Who should care

Organizations using 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 should prioritize patching this vulnerability to prevent potential unauthorized access. This includes operators, security teams, and administrators responsible for these systems.

Technical summary

The vulnerability is caused by an Incorrect Authorization issue in 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. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access. The CVSS score for this vulnerability is 8.8, indicating a HIGH severity level. This vulnerability can be exploited remotely, and its successful exploitation could lead to unauthorized access.

Defensive priority

High

Recommended defensive actions

  • Apply patches or updates provided by Dell to address the vulnerability
  • Restrict remote access to Dell PowerProtect Data Domain systems
  • Monitor system logs for suspicious activity
  • Implement additional security controls, such as multi-factor authentication
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-07-08T14:17:14.980Z and was last modified on 2026-07-09T04:17:46.973Z. The NVD entry is currently Analyzed. This vulnerability affects 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. The vulnerability is caused by an Incorrect Authorization issue. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-08T14:17:14.980Z and has not been modified since then. The NVD entry is currently Analyzed.