# CVE-2026-56086: Dell PowerProtect Data Domain incorrect authorization

Source: https://junglewise.ai/threats/cve-2026-56086-dell-powerprotect-data-domain-incorrect-authorization  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-08. Updated: 2026-07-08  
License: CC BY 4.0 with a link back

CVE-2026-56086 · Severity: high · CVSS 8.8 · Published 2026-07-08

Dell PowerProtect Data Domain is a backup and storage solution used to protect and manage corporate data. A security flaw in the system's authorization checks could allow a user with low-level access to gain unauthorized permissions. This could lead to the exposure of sensitive data or unauthorized changes to the storage environment.

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-2026-56086 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-56086 being exploited in the wild.

**How severe is CVE-2026-56086?** High severity, with a CVSS score of 8.8, published 8 July 2026.

**Which products and versions are affected?** Dell PowerProtect Data Domain 7.7.1.0 - 8.6, 8.6.1.0 - 8.6.1.10 (LTS2026), 8.3.1.0 - 8.3.1.30 (LTS2025), 7.13.1.0 - 7.13.1.70 (LTS2024).

**Is there a fix for CVE-2026-56086?** 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-2026-56086 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-56086?** 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

Dell PowerProtect Data Domain is affected by an incorrect authorization vulnerability (CWE-863). The flaw exists in multiple versions, including the 7.7.1.0 through 8.6 branches and various Long Term Support (LTS) releases. A remote attacker with low-level authenticated privileges can exploit this vulnerability to bypass intended access controls. Successful exploitation results in unauthorized access to system resources, potentially compromising the confidentiality, integrity, and availability of the data protection platform. Dell has released security updates (DSA-2026-278) to address this issue, with fixed versions including 8.7.0.0, 8.6.1.20, 8.3.1.40, and 7.13.1.80 or later.

## Affected products

- Dell PowerProtect Data Domain 7.7.1.0 - 8.6, 8.6.1.0 - 8.6.1.10 (LTS2026), 8.3.1.0 - 8.3.1.30 (LTS2025), 7.13.1.0 - 7.13.1.70 (LTS2024)

## Timeline

- 2026-07-08: advisory: Initial publication of DSA-2026-278 and NVD entry.

## References

- [https://www.dell.com/support/kbdoc/en-us/000481268/dsa-2026-278-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities?msockid=3021cac2195069ed3194ddad186a68f9](https://www.dell.com/support/kbdoc/en-us/000481268/dsa-2026-278-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities?msockid=3021cac2195069ed3194ddad186a68f9)

## 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)