Dell patches critical Data Domain RCE flaws
Dell fixed multiple critical vulnerabilities in PowerProtect Data Domain and Data Domain Management Center, including unauthenticated flaws scoring up to 9.8 CVSS.
Sourceadvisories.ncsc.nl — open the original
What to check
- Applies to
- The 34 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
Dell has released patches for a large set of vulnerabilities affecting PowerProtect Data Domain, Data Domain Virtual Edition, and Data Domain Management Center. The most severe issues—CVE-2026-103780, CVE-2026-86384, CVE-2026-86397, and CVE-2026-86400—carry a CVSS score of 9.8 and allow an unauthenticated remote attacker to execute arbitrary commands, obtain credentials, or create privileged accounts. Three additional critical flaws in the Management Center component (CVE-2026-103799, CVE-2026-103792 at 9.6, and CVE-2026-90717 at 9.1) allow a low-privileged attacker to gain unauthorized access to managed systems, perform unauthorized actions, or escalate privileges.
The advisory also lists approximately two dozen additional vulnerabilities with CVSS scores ranging from 6.0 to 8.8, covering a wide range of weakness classes including path traversal, OS command injection, SQL injection, buffer overflows (stack-based and classic), integer overflow, improper privilege checks, authentication bypass by spoofing, missing authentication, hard-coded cryptographic keys, improper integrity validation, out-of-bounds write, and missing authorization. Exploitation of these can lead to arbitrary command execution, privilege escalation, unauthorized data access, and service disruption.
Dell has released fixed versions: DD OS 8.9.0.0, 7.13.1.90 (LTS2024), 8.3.1.50 (LTS2025), and 8.6.1.30 (LTS2026), or later within the respective release branches. No evidence of active exploitation is mentioned in the advisory; NCSC-NL recommends organizations running affected Data Domain/Data Domain Management Center deployments apply the relevant updates promptly given the unauthenticated, remotely exploitable nature of the top-severity flaws on backup/storage infrastructure.
Mentioned in this report
Source reporting: https://advisories.ncsc.nl/2026/ncsc-2026-0460.html
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