# CVE-2026-86383: Dell PowerProtect Data Domain path traversal vulnerability

Source: https://junglewise.ai/threats/cve-2026-86383-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-2026-86383 · Severity: medium · CVSS 6.8 · Published 2026-10-28

Dell PowerProtect Data Domain is a data backup and recovery appliance. An authenticated remote attacker with high privileges could exploit a path traversal flaw to read sensitive files on the system, potentially exposing backup metadata, configuration data, or other confidential information stored on the appliance.

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-2026-86383 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-86383 being exploited in the wild.

**How severe is CVE-2026-86383?** Medium severity, with a CVSS score of 6.8, published 28 October 2026.

**Which products and versions are affected?** Dell PowerProtect Data Domain 7.7.1.0 through 8.8 (Feature Release), 8.3.1.0 through 8.3.1.40 (LTS2025), 8.6.1.0 through 8.6.1.20 (LTS2026).

**Is there a fix for CVE-2026-86383?** 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-2026-86383 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-86383?** 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

A path traversal vulnerability in Dell PowerProtect Data Domain allows a high-privileged authenticated remote attacker to bypass directory restrictions and access files outside intended directories. The vulnerability affects Feature Release versions 7.7.1.0–8.8, LTS2025 versions 8.3.1.0–8.3.1.40, and LTS2026 versions 8.6.1.0–8.6.1.20. Exploitation leads to information disclosure through unauthorized file access.

## Affected products

- Dell PowerProtect Data Domain 7.7.1.0 through 8.8 (Feature Release), 8.3.1.0 through 8.3.1.40 (LTS2025), 8.6.1.0 through 8.6.1.20 (LTS2026)

## 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)