[HIGH] CVE-2026-23853 — CVSS 8.4 (April 17, 2026)

A HIGH-severity vulnerability identified as CVE-2026-23853 has been published on April 17, 2026 with a CVSS base score of 8.4. This security advisory provides a detailed breakdown of the vulnerability, its potential impact, weakness classification, and actionable steps to protect your systems.

Vulnerability Details

CVE ID: CVE-2026-23853
Severity: HIGH
CVSS Score: 8.4
Published: April 17, 2026
Weakness (CWE): CWE-1391

Technical Description

Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.5, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 release versions 7.13.1.0 through 7.13.1.50, contain a use of weak credentials vulnerability. An unauthenticated attacker with local access could potentially exploit this vulnerability, leading to unauthorized access to the system.

Potential Impact

If exploited, this high-severity vulnerability could allow an attacker to compromise sensitive data confidentiality, tamper with system integrity, cause a denial of service. Organizations running affected software should treat this as a priority remediation item.

Recommended Action

No official patch is available yet. Until one is released:

1. Monitor the official NVD page and vendor channels for patch announcements.
2. Restrict access to the affected system or service where possible.
3. Apply network-level mitigations such as firewall rules or WAF policies.
4. Enable logging and alerting for anomalous activity related to this vulnerability.
5. Review your incident response plan in case of active exploitation.

View full details on NVD →

References

• Reference 1

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• [HIGH] CVE-2025-14868 — CVSS 8.8 (April 16, 2026) — HIGH / CVSS 8.8