Dell PowerProtect Data Domain Management Center: Authentication bypass by spoofing
Summary
Dell PowerProtect Data Domain Management Center in several Feature Release and LTS versions contains an authentication bypass by spoofing (CWE-290). A remote attacker with a low-privileged account can exploit it to escalate privileges, and the flaw could affect other managed Data Domain systems. Dell rates the issue critical (CVSS 3.1: 9.1), but the sources disagree on the exact score and CWE, so the Dell advisory is the authority.
Affected
- Feature Release 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
- LTS2026 8.6.1.0 through 8.6.1.20
Fixed in
- Dell's affected ranges imply fixed releases 8.9.0.0, 8.6.1.30, 8.3.1.50 and 7.13.1.90 or later (from secondary trackers; not yet confirmed against Dell's remediation table)
Workaround
Unknown.
Exploitation
- Dell reports no known exploitation.
- No public exploit code found.
- Not confirmed in CISA KEV at the time of research.
- CISA SSVC: exploitation none, not automatable, total technical impact.
Our recommendation
- Check whether the Management Center management interface is reachable from outside the admin network, and restrict access (VPN, allow-list) until patched.
- Verify the fixed versions in Dell advisory DSA-2026-416 and patch the Management Center together with the managed Data Domain systems.
- Review admin and service accounts for unnecessary privileges and rotate credentials.
- Monitor authentication logs for unusual logins.
- Scanners may report false positives after patching; check against the Dell advisory.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Dell advisory DSA-2026-416 www.dell.com
- Brandefense: Dell Data Domain critical vulnerabilities brandefense.io
- Securityonline: Dell PowerProtect Data Domain vulnerabilities securityonline.info
- Strix: CVE-2026-90717 record summary www.strix.ai
- OffSeq: CVE-2026-90717 threat entry radar.offseq.com
- VulDB: CVE-2026-90717 vuldb.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 31 Oct 2026, 05:17.
Original description (NVD)
Dell PowerProtect Data Domain Management Center, 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 Authentication Bypass by Spoofing vulnerability. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Elevation of privileges. This vulnerability could impact other managed Data Domain systems.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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