# CVE-2026-86391: Dell PowerProtect Data Domain Management Center authentication bypass by spoofing

Source: https://junglewise.ai/threats/cve-2026-86391-dell-powerprotect-data-domain-management-center-feature-release  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-28. Updated: 2026-10-28  
License: CC BY 4.0 with a link back

CVE-2026-86391 · Severity: medium · CVSS 6.4 · Published 2026-10-28

Dell PowerProtect Data Domain Management Center is a centralized management console for data protection and backup systems used by enterprises. An authentication bypass vulnerability allows a remote attacker with low privileges to spoof authentication credentials, potentially causing service disruption or unauthorized access to the management interface.

Technologies: [Dell PowerProtect Data Domain Management Center](https://junglewise.ai/threats/technologies/powerprotect-data-domain-management-center). Vendors: [Dell](https://junglewise.ai/threats/vendors/dell).

## Quick answers

**Is CVE-2026-86391 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-86391 being exploited in the wild.

**How severe is CVE-2026-86391?** Medium severity, with a CVSS score of 6.4, published 28 October 2026.

**Which products and versions are affected?** Dell PowerProtect Data Domain Management Center Feature Release 7.7.1.0 through 8.8, LTS2024 7.13.1.0 through 7.13.1.80, LTS2025 8.3.1.0 through 8.3.1.40, LTS2026 8.6.1.0 through 8.6.1.20.

**Is there a fix for CVE-2026-86391?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-86391 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-86391?** Check whether you run Dell PowerProtect Data Domain Management Center at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An authentication bypass vulnerability in PowerProtect Data Domain Management Center allows a low-privileged attacker with remote network access to spoof authentication credentials and bypass access controls. The vulnerability affects the management interface across multiple release versions. Successful exploitation can result in denial of service or potential unauthorized administrative access.

## Affected products

- Dell PowerProtect Data Domain Management Center Feature Release 7.7.1.0 through 8.8, LTS2024 7.13.1.0 through 7.13.1.80, LTS2025 8.3.1.0 through 8.3.1.40, LTS2026 8.6.1.0 through 8.6.1.20

## Timeline

- 2026-10-28: disclosed

## References

- [https://www.dell.com/support/kbdoc/en-us/000515178/dsa-2026-416-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities](https://www.dell.com/support/kbdoc/en-us/000515178/dsa-2026-416-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities)

## Related threats

- [Dell PowerProtect Data Domain Management Center missing authorization](https://junglewise.ai/threats/cve-2026-110540-dell-powerprotect-data-domain-management-center-feature-release)
- [Dell PowerProtect Data Domain Management Center missing authorization](https://junglewise.ai/threats/cve-2026-103799-dell-powerprotect-data-domain-management-center-feature-release)
- [Dell PowerProtect Data Domain Management Center SQL injection](https://junglewise.ai/threats/cve-2026-103792-dell-powerprotect-data-domain-management-center-feature-release)
- [Dell PowerProtect Data Domain Management Center SQL injection](https://junglewise.ai/threats/cve-2026-86386-dell-powerprotect-data-domain-management-center-feature-release)
- [Dell PowerProtect Data Domain Management Center OS command injection](https://junglewise.ai/threats/cve-2026-86379-dell-powerprotect-data-domain-management-center-feature-release)