● Critical · CVSS 9.8

How to Fix CVE-2025-49216: Trend Micro Endpoint Encryption Policy Server (Bundle Sibling)

Q: Is CVE-2025-49216 actively exploited?

Yes. CVE-2025-49216 is on the CISA Known Exploited Vulnerabilities catalog, so federal civilian agencies are required to patch on the published deadline. Most enterprises treat the same date as the practical floor.

Q: What is the CVSS severity of CVE-2025-49216?

Critical. See the advisory for the full CVSS vector.

Q: Where can I read the official advisory?

See https://success.trendmicro.com/en-US/solution/KA-0019928

Q: Does the patch require a reboot?

It depends on the deployment. Service-only updates usually need a service restart; OS-level fixes require a full reboot. Check the vendor release notes for the exact post-upgrade steps.

⚡ At a glance


Severity	CVSS 9.8, Critical
Actively exploited?	No
Affected	Trend Micro, Inc. Trend Micro Endpoint Encryption Policy Server (< 6.0.0.4013)
Fixed in	Same patched build as CVE-2025-49212
Type (CWE)	CWE-477: Use of Obsolete Function

CVE-2025-49216 is a sibling vulnerability in the same Trend Micro, Inc. Trend Micro Endpoint Encryption Policy Server advisory bundle as CVE-2025-49212. The same patched build closes every CVE in the bundle, so the remediation procedure for CVE-2025-49216 is the same as for the primary write-up.

What's different about CVE-2025-49216?

An authentication bypass vulnerability in the Trend Micro Endpoint Encryption PolicyServer could allow an attacker to access key methods as an admin user and modify product configurations on affected installations.

The technical distinction is the specific code path or input vector listed in the description above. Impact is consistent with the bundle: an authentication bypass that grants access without valid credentials. The patched build addresses every code path in the advisory in one update.