Multiple vulnerabilities in Trend Micro Apex One

1) Improper access control

EUVDB-ID: #VU110674

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-49154

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper access restrictions. A local user can overwrite key memory-mapped files and escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apex One: Patch 1 b2087 - CP 13150

CPE2.3

External links

https://success.trendmicro.com/en-US/solution/KA-0019917

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

2) Untrusted search path

EUVDB-ID: #VU110675

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-49158

CWE-ID: CWE-426 - Untrusted Search Path

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to usage of an untrusted search path. A local user can place a malicious binary into a specific location on the system and execute arbitrary code with escalated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apex One: Patch 1 b2087 - CP 13150

CPE2.3

External links

https://success.trendmicro.com/en-US/solution/KA-0019917
https://www.zerodayinitiative.com/advisories/ZDI-25-365/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

3) Insecure DLL loading

EUVDB-ID: #VU110676

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 - Uncontrolled Search Path Element

Exploit availability: No

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

CPE2.3

External links

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

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.

4) Link following

EUVDB-ID: #VU110677

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-49156

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to an insecure link following issue. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with privileges of the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apex One: Patch 1 b2087 - CP 13150

CPE2.3

External links

https://success.trendmicro.com/en-US/solution/KA-0019917
https://www.zerodayinitiative.com/advisories/ZDI-25-363/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

5) Link following

EUVDB-ID: #VU110678

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-49157

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to an insecure link following issue. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with privileges of the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apex One: Patch 1 b2087 - CP 13150

CPE2.3

External links

https://success.trendmicro.com/en-US/solution/KA-0019917
https://www.zerodayinitiative.com/advisories/ZDI-25-364/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

Risk	High
Patch available	YES
Number of vulnerabilities	5
CVE-ID	CVE-2025-49154 CVE-2025-49158 CVE-2025-49155 CVE-2025-49156 CVE-2025-49157
CWE-ID	CWE-284 CWE-426 CWE-427 CWE-59
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Apex One Client/Desktop applications / Antivirus software/Personal firewalls
Vendor	Trend Micro