# CVE-2026-53483: Dell PowerProtect Data Domain improper authentication

Source: https://junglewise.ai/threats/cve-2026-53483-dell-powerprotect-data-domain-improper-authentication  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-07. Updated: 2026-07-07  
License: CC BY 4.0 with a link back

CVE-2026-53483 · Severity: critical · CVSS 9.8 · Published 2026-07-07

Dell PowerProtect Data Domain is a storage solution used for backup, recovery, and archiving of enterprise data. A critical security flaw allows an unauthenticated attacker to bypass security checks and gain full control over the system remotely. This could lead to the total loss of data confidentiality and integrity, potentially allowing attackers to delete backups or steal sensitive corporate information.

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-2026-53483 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-53483 being exploited in the wild.

**How severe is CVE-2026-53483?** Critical severity, with a CVSS score of 9.8, published 7 July 2026.

**Which products and versions are affected?** Dell PowerProtect Data Domain 7.7.1.0 through 8.7, 8.6.1.0 through 8.6.1.10 (LTS2026), 8.3.1.0 through 8.3.1.30 (LTS2025), 7.13.1.0 through 7.13.1.70 (LTS2024).

**Is there a fix for CVE-2026-53483?** 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-2026-53483 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-53483?** 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

An improper authentication vulnerability exists in Dell PowerProtect Data Domain across multiple versions, including several Long Term Support (LTS) releases. The flaw allows a remote, unauthenticated attacker to bypass authentication mechanisms due to insufficient validation. Successful exploitation enables the attacker to gain unauthorized access and achieve full system compromise. Dell has released security updates to address this issue and recommends immediate upgrades to the latest available versions.

## Affected products

- Dell PowerProtect Data Domain 7.7.1.0 through 8.7, 8.6.1.0 through 8.6.1.10 (LTS2026), 8.3.1.0 through 8.3.1.30 (LTS2025), 7.13.1.0 through 7.13.1.70 (LTS2024)

## Timeline

- 2026-07-07: disclosed: Initial advisory publication

## References

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