CVE-2025-8558CWE-306

CVE-2025-8558

Medium · published November 4, 2025

CVSS v3.1
5.4
EPSS
1%
Percentile
49.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00628 · 49.5th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2025-11-04T00:16Z
Affected products (1)
ProductVersionsFixed in
proofpoint/insider_threat_management_server< 7.17.27.17.2
References (1)
https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2025-003 · [email protected]
EPSS history
Timeline
  • 03 NOV 18:40Z
    Insider Threat Management (ITM) Server versions prior to 7.17.2 contain an authentication bypass vulnerability that allows unauthenticated users on an adjacent…
    cvelistv5