CVE-2026-33389

An improper certificate/host key validation vulnerability was discovered in the Smart Polling functionality, which established encrypted connections to target devices without validating the remote host's identity, and no option was provided to enable it. A man-in-the-middle attacker positioned between a sensor and a polled device can, during a polling session, impersonate the device and intercept the communication, including the credentials used to access it. The captured credentials can then be replayed to authenticate against the device itself or against other devices sharing the same credentials, allowing the attacker to access and tamper with the device's data and to disrupt its operations.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.6 / Impact : 5.3

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://security.nozominetworks.com/NN-2026:20-01

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-08 14:17

Updated : 2026-09-08 19:12

NVD link : CVE-2026-33389

Mitre link : CVE-2026-33389

CVE.ORG link : CVE-2026-33389

JSON object : View

Products Affected

No product.

CWE

CWE-671

Lack of Administrator Control over Security

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