All vulnerabilities
CVE-2026-86397

Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release ver

Dell PowerProtect Data Domain
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.34%Chance of exploitation activity in the next 30 days, higher than 26% of CVEs. Scored 28 Oct 2026FIRST EPSS
Fixed in8.9.0.0 or laterAlso 7.13.1.90 or later, 8.3.1.50 or later and 1 moreCVE List
Published28 Oct 2026Updated 28 Oct 2026CVE List

What fixes it

  • 8.9.0.0 or laterPowerProtect Data DomainCVE List
  • 7.13.1.90 or laterPowerProtect Data DomainCVE List
  • 8.3.1.50 or laterPowerProtect Data DomainCVE List
  • 8.6.1.30 or laterPowerProtect Data DomainCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Reports 1

1 outlet mention it. Reports are not confirmation; each links to its source.

Description

Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain an Improper Authentication vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to privileged account creation. This is a critical severity vulnerability as it allows an attacker to take complete control of the system. Dell recommends customers to upgrade at the earliest opportunity.

Text from CVE List

Affected versions 4

  • PowerProtect Data Domainaffected: all versions before 8.9.0.0 or laterCVE List
  • PowerProtect Data Domainaffected: all versions before 7.13.1.90 or laterCVE List
  • PowerProtect Data Domainaffected: all versions before 8.3.1.50 or laterCVE List
  • PowerProtect Data Domainaffected: all versions before 8.6.1.30 or laterCVE List

References 1