What’s Vulnerable › Vulnerabilities

CVE-2020-5319

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-02-06 · updated 2026-06-17
• Weakness: CWE-129

Description

Dell EMC Unity, Dell EMC Unity XT, and Dell EMC UnityVSA versions prior to 5.0.2.0.5.009 contain a Denial of Service vulnerability on NAS Server SSH implementation that is used to provide SFTP service on a NAS server. A remote unauthenticated attacker may potentially exploit this vulnerability and cause a Denial of Service (Storage Processor Panic) by sending an out of order SSH protocol sequence.

Affected products

• Dell Emc Unity Operating Environment: before 5.0.2.0.5.009 — fixed in 5.0.2.0.5.009
• Dell Emc Unity Xt Operating Environment: before 5.0.2.0.5.009 — fixed in 5.0.2.0.5.009
• Dell Emc Unityvsa Operating Environment: before 5.0.2.0.5.009 — fixed in 5.0.2.0.5.009

How to fix

Upgrade to a fixed version: Dell Emc Unity Operating Environment 5.0.2.0.5.009; Dell Emc Unity Xt Operating Environment 5.0.2.0.5.009; Dell Emc Unityvsa Operating Environment 5.0.2.0.5.009. Check the vendor advisory for mitigations.

References

• https://www.dell.com/support/security/en-us/details/540336/DSA-2020-019-Dell-EMC-Unity-Family-Dell-EMC-Unity-XT-Family-Denial-of-Service-Vulnerability
• https://www.dell.com/support/security/en-us/details/540336/DSA-2020-019-Dell-EMC-Unity-Family-Dell-EMC-Unity-XT-Family-Denial-of-Service-Vulnerability

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