# CVE-2026-86393: Dell PowerProtect Data Domain privilege escalation

Source: https://junglewise.ai/threats/cve-2026-86393-dell-powerprotect-data-domain-feature-release-versions-7-7-1-0  
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-2026-86393 · Severity: high · CVSS 7.2 · Published 2026-10-28

Dell PowerProtect Data Domain is a backup and recovery appliance used by enterprises to protect critical data. A high-privileged remote attacker could exploit an improper privilege management vulnerability to escalate their privileges further, potentially gaining full control of the system. This could allow them to access or manipulate backed-up data, disrupt recovery operations, or move laterally within the data protection infrastructure.

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

## Quick answers

**Is CVE-2026-86393 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-86393 being exploited in the wild.

**How severe is CVE-2026-86393?** High severity, with a CVSS score of 7.2, published 28 October 2026.

**Which products and versions are affected?** Dell PowerProtect Data Domain 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-2026-86393?** 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-2026-86393 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-86393?** Check whether you run Dell PowerProtect Data Domain 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

The vulnerability is an improper privilege management flaw in Dell PowerProtect Data Domain affecting multiple release tracks. A high-privileged attacker with remote access can exploit this to elevate privileges, gaining unauthorized administrative capabilities. The vulnerability is present in Feature Release versions 7.7.1.0 through 8.8, LTS2024 versions 7.13.1.0 through 7.13.1.80, LTS2025 versions 8.3.1.0 through 8.3.1.40, and LTS2026 versions 8.6.1.0 through 8.6.1.20.

## Affected products

- Dell PowerProtect Data Domain 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 stack buffer overflow](https://junglewise.ai/threats/cve-2026-86378-dell-powerprotect-data-domain-feature-release-versions-7-7-1-0)
- [Dell PowerProtect Data Domain out-of-bounds write](https://junglewise.ai/threats/cve-2026-86377-dell-powerprotect-data-domain-feature-release-versions-7-7-1-0)
- [Dell PowerProtect Data Domain OS command injection](https://junglewise.ai/threats/cve-2026-110541-dell-powerprotect-data-domain-feature-release-versions-7-7-1-0)
- [Dell PowerProtect Data Domain stack-based buffer overflow](https://junglewise.ai/threats/cve-2026-103780-dell-powerprotect-data-domain-feature-release-versions-7-7-1-0)
- [Dell PowerProtect Data Domain improper authentication](https://junglewise.ai/threats/cve-2026-103779-dell-powerprotect-data-domain-feature-release-versions-7-7-1-0)