What is CVE-2026-103779?

CVE-2026-103779 is a high-severity vulnerability in Dell Powerprotect Data Domain, classified under Improper Authentication. CVSS score: 8.3/10. Published 2026-10-28.

How severe is CVE-2026-103779?

High severity. CVSS v3 base score is 8.3 out of 10.

Auth bypass in Dell Powerprotect Data Domain

CVE-2026-103779

Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain an Improper Authentication vulnerability. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Protection mechanism bypass.

Vulnerability class: Broken Authentication

Published 2026-10-28 · last modified 2026-10-28.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Dell Powerprotect Data Domain

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

www.dell.com/support/kbdoc/en-us/000515178/dsa-2026-416-security-update-for-del… (vendor-advisory)

Frequently asked questions

What is CVE-2026-103779?: CVE-2026-103779 is a high-severity vulnerability in Dell Powerprotect Data Domain, classified under Improper Authentication. CVSS score: 8.3/10. Published 2026-10-28.
How severe is CVE-2026-103779?: High severity. CVSS v3 base score is 8.3 out of 10.