Affected Version(s)
| Product | Affected Version(s) | Platform | Language(s) |
|---|---|---|---|
| Deep Security Agent | Versions before 20.0.1-25770 | Windows | English |
Solution
Trend Micro has released the following solutions to address the issue:
| Product | Updated version | Notes | Platform | Availability |
|---|---|---|---|---|
| Deep Security Agent | 20.0.1-25770 (20 LTS Update 2024-12-10) | Readme | Windows | Now Available |
These are the minimum recommended version(s) of the patches and/or builds required to address the issue. Trend Micro highly encourages customers to obtain the latest version of the product if there is a newer one available than the one listed in this bulletin.
Customers are encouraged to visit Trend Micro’s Download Center to obtain prerequisite software (such as Service Packs) before applying any of the solutions above.
Vulnerability Details
CVE-2025-30640: Link Following Local Privilege Escalation Vulnerability
ZDI-CAN-24930
CVSSv3: 7.8: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-59: Improper Link Resolution Before File Access
A link following vulnerability in Trend Micro Deep Security 20.0 agents could allow a local attacker to escalate privileges on affected installations.
Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
CVE-2025-30641: Anti-Malware Link Following Local Privilege Escalation Vulnerability
ZDI-CAN-24931
CVSSv3: 7.8: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-59: Improper Link Resolution Before File Access
A link following vulnerability in the anti-malware solution portion of Trend Micro Deep Security 20.0 agents could allow a local attacker to escalate privileges on affected installations.
Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
CVE-2025-30642: Link Following Denial of Service Vulnerability
ZDI-CAN-25681
CVSSv3: 5.5: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-59: Improper Link Resolution Before File Access
A link following vulnerability in Trend Micro Deep Security 20.0 agents could allow a local attacker to create a denial of service (DoS) situation on affected installations.
Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
Mitigating Factors
Exploiting these type of vulnerabilities generally require that an attacker has access (physical or remote) to a vulnerable machine. In addition to timely application of patches and updated solutions, customers are also advised to review remote access to critical systems and ensure policies and perimeter security is up-to-date.
However, even though an exploit may require several specific conditions to be met, Trend Micro strongly encourages customers to update to the latest builds as soon as possible.
Acknowledgement
Trend Micro would like to thank the following individuals for responsibly disclosing these issues and working with Trend Micro to help protect our customers:
- Anonymous working with Trend Micro's Zero Day Initiative (CVE-2025-30640 and CVE-2025-30641)
- NT AUTHORITY\ANONYMOUS LOGON working with Trend Micro's Zero Day Initiative (CVE-2025-30642)
External Reference(s)
- ZDI-CAN-24930
- ZDI-CAN-24931
- ZDI-CAN-25681