CVE-2018-15784: DSA-2019-001: Dell Networking OS10 Improper Certificate Validation Vulnerability

Severity: high (CVSS 7.4 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-01-18 · updated 2026-06-17
Weakness: CWE-295

Description

Dell Networking OS10 versions prior to 10.4.3.0 contain a vulnerability in the Phone Home feature which does not properly validate the server's certificate authority during TLS handshake. Use of an invalid or malicious certificate could potentially allow an attacker to spoof a trusted entity by using a man-in-the-middle (MITM) attack.

Affected products

Dell Networking OS10: before 10.4.3.0 — fixed in 10.4.3.0

How to fix

Upgrade to a fixed version: Dell Networking OS10 10.4.3.0. Check the vendor advisory for mitigations.

References

https://www.dell.com/support/article/us/en/04/sln315899/dsa-2019-001-dell-networking-os10-improper-certificate-validation-vulnerability?lang=en
https://www.dell.com/support/article/us/en/04/sln315899/dsa-2019-001-dell-networking-os10-improper-certificate-validation-vulnerability?lang=en

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