#VU110676 Insecure DLL loading in Apex One - CVE-2025-49155

Vulnerability identifier: #VU110676

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-49155

CWE-ID: CWE-427

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apex One
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: Trend Micro

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to the application loads DLL libraries in an insecure manner. A remote attacker can place a specially crafted .dll file on a remote SMB fileshare, trick the victim into opening a file, associated with the vulnerable application, and execute arbitrary code on victim's system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apex One: Patch 1 b2087 - CP 13150

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External links
https://success.trendmicro.com/en-US/solution/KA-0019917
https://www.zerodayinitiative.com/advisories/ZDI-25-362/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.