How severe is CVE-2025-49154?

CVE-2025-49154 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.

Is CVE-2025-49154 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-49154?

CVE-2025-49154 primarily affects Trendmicro Worry-free Business Security. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-49154?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-49154 have an EU (EUVD) identifier?

Yes. CVE-2025-49154 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18531.

When was CVE-2025-49154 published?

CVE-2025-49154 was published on 2025-06-17 and last updated on 2026-06-17.

CVE-2025-49154

CVE-2025-49154 is a high-severity vulnerability in Trendmicro Worry-free Business Security with a CVSS 3.x base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: High (CVSS 3.x base score 8.7)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-18531
Weakness: CWE-284
Affected product: Trendmicro Worry-free Business Security
Published: 2025-06-17
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2025-49154?: 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.
How severe is CVE-2025-49154?: CVE-2025-49154 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.
Is CVE-2025-49154 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-49154?: CVE-2025-49154 primarily affects Trendmicro Worry-free Business Security. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-49154?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-49154 have an EU (EUVD) identifier?: Yes. CVE-2025-49154 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18531.
When was CVE-2025-49154 published?: CVE-2025-49154 was published on 2025-06-17 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:trendmicro:worry-free_business_security:10.0:sp1:*:*:advanced:*:*:*
cpe:2.3:a:trendmicro:worry-free_business_security:10.0:sp1:*:*:standard:*:*:*
cpe:2.3:a:trendmicro:worry-free_business_security_services:*:*:*:*:saas:*:*:*
cpe:2.3:a:trendmicro:apex_one:*:*:*:*:saas:windows:*:*
cpe:2.3:a:trendmicro:apex_one:*:*:*:*:on-premises:windows:*:*

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