CVE-2025-49154 [High] | Security Vulnerability in Worry-Free Business Security

An insecure access control vulnerability in Trend Micro Apex One and Trend Micro Worry-Free Business Security could allow a local attacker to overwrite key memory-mapped files which could then have severe consequences for the security and stability of 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.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-04-13	0.01%	0.05%	+0.04%
2	2025-06-18	—	0.01%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-04-13

0.01%

0.05%

+0.04%

2025-06-18

—

0.01%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.7	3.1	HIGH	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:C) Breaking this can reach past the original component and bite other resources—bigger blast radius. Confidentiality (C:L) Some sensitive info could get out, but not a total data dump. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.0	6.0	[email protected]
7.8	3.1	HIGH	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	1.8	5.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

8.7

3.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H Click to expand

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C): Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L): Some sensitive info could get out, but not a total data dump.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

2.0

6.0

[email protected]

7.8

3.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

1.8

5.9

[email protected]

Affected software / configurations for CVE-2025-49154

Vendor	Product	Version	Raw CPE
trendmicro	worry-free_business_security	10.0	cpe:2.3:a:trendmicro:worry-free_business_security:10.0:sp1:::advanced:::*
trendmicro	worry-free_business_security	10.0	cpe:2.3:a:trendmicro:worry-free_business_security:10.0:sp1:::standard:::*
trendmicro	worry-free_business_security_services	>= 6.7.0.0, < 6.7.3954	cpe:2.3:a:trendmicro:worry-free_business_security_services:::::saas:::*
trendmicro	worry-free_business_security_services	>= 14.0.0, < 14.3.1299	cpe:2.3:a:trendmicro:worry-free_business_security_services:::::saas:::*
trendmicro	apex_one	< 14.0.14492	cpe:2.3:a:trendmicro:apex_one:::::saas:windows::
trendmicro	apex_one	>= 14.0.0.12994, < 14.0.0.14002	cpe:2.3:a:trendmicro:apex_one:::::on-premises:windows::

References for CVE-2025-49154

URL	Tags
https://success.trendmicro.com/en-US/solution/KA-0019917	Vendor Advisory
https://success.trendmicro.com/en-US/solution/KA-0019936	Vendor Advisory

URL

CVE-2025-49154

Exploit prediction scoring system (EPSS) score for CVE-2025-49154

Common vulnerability scoring system (CVSS) metrics for CVE-2025-49154

Weakness enumeration for CVE-2025-49154

Affected software / configurations for CVE-2025-49154

References for CVE-2025-49154