---
title: "CVE-2026-103779: Dell PowerProtect Data Domain - Authentication Bypass"
description: "Dell PowerProtect Data Domain 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, and LTS2026 8.6.1.0 through 8.6.1.20 contain an improper authentication vulnerability caused by flawed authentication mechanisms, letting low privileged remote attackers bypass protection mechanisms, exploit requires remote access."
url: https://panop.io/threat-heartbeat/CVE-2026-103779/
---

# CVE-2026-103779 Dell PowerProtect Data Domain - Authentication Bypass

Dell PowerProtect Data Domain 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, and LTS2026 8.6.1.0 through 8.6.1.20 contain an improper authentication vulnerability caused by flawed authentication mechanisms, letting low privileged remote attackers bypass protection mechanisms, exploit requires remote access.

CVSS base score 8.3 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-103779)

## Details

Type

Authentication Bypass

Impact

Broken Authentication

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Published

28 October 2026

Updated

29 October 2026

Weakness

[CWE-287](https://cwe.mitre.org/data/definitions/287.html)

## Vendor fix

Update to the latest available version beyond 8.8 or respective LTS versions.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-103779](https://nvd.nist.gov/vuln/detail/CVE-2026-103779)
- [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)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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