BaseFortify

Publication date: 2025-11-03

Last updated on: 2025-11-07

Assigner: Proofpoint Inc.

Description

Insider Threat Management (ITM) Server versions prior to 7.17.2 contain an authentication bypass vulnerability that allows unauthenticated users on an adjacent network to perform agent unregistration when the number of registered agents exceeds the licensed limit. Successful exploitation prevents the server from receiving new events from affected agents, resulting in a partial loss of integrity and availability with no impact to confidentiality.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-11-03

Last Modified

2025-11-07

Generated

2026-07-06

AI Q&A

2025-11-03

EPSS Evaluated

2026-07-05

NVD

CVE-2025-8558

Affected Vendors & Products

Vendor	Product	Version / Range
proofpoint	insider_threat_management_server	to 7.17.2 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-306	The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Attack-Flow Graph

Executive Summary

This vulnerability is an authentication bypass in Insider Threat Management (ITM) Server versions prior to 7.17.2. It allows unauthenticated users on an adjacent network to unregister agents when the number of registered agents exceeds the licensed limit. This means attackers can remove agents without proper authentication.

Impact Analysis

Exploiting this vulnerability prevents the server from receiving new events from affected agents, causing a partial loss of integrity and availability of the system. However, it does not impact confidentiality.

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