CVE-2025-53378: A missing authentication vulnerability in Trend Micro Worry-Free Business Security Services (WFBSS) agent coul

This month

HIGH 7.6UPGRADE

CVE-2025-53378 is a high-severity flaw (CVSS 7.6) affecting worry-free business security services. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A missing authentication vulnerability in Trend Micro Worry-Free Business Security Services (WFBSS) agent could have allowed an unauthenticated attacker to remotely take control of the agent on affected installations. Also note: this vulnerability only affected the SaaS client version of WFBSS only, meaning the on-premise version of Worry-Free Business Security was not affected, and this issue was addressed in a WFBSS monthly maintenance updat

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-306
Published	2025-07-10
Last modified	2026-06-17

Publisher (CNA): Trend Micro, Inc. · Vendor: trendmicro

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-10 19:15 UTCPublished CVE record published
2026-06-17 09:38 UTCUpdated Record last modified

trendmicro worry-free business security services UPGRADE

Affected: >= 6.7.0.0 and < 6.7.3954 · >= 14.0.0 and < 14.3.1299

Fixed in: 6.7.3954, 14.3.1299

Safe to downgrade to: a release before 6.7.0.0

1. Check installed version

apt-cache policy worry-free-business-security-services || rpm -q worry-free-business-security-services || worry-free-business-security-services --version

2. UPGRADE to 6.7.3954 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade worry-free-business-security-services

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade worry-free-business-security-services

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 6.7.0.0 (Debian / Ubuntu)

apt-cache madison worry-free-business-security-services sudo apt install worry-free-business-security-services=<VERSION_BEFORE_6.7.0.0> sudo apt-mark hold worry-free-business-security-services

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list worry-free-business-security-services sudo dnf downgrade worry-free-business-security-services-<VERSION_BEFORE_6.7.0.0> sudo dnf versionlock add worry-free-business-security-services

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-53378?

worry-free business security services: upgrade to 6.7.3954, 14.3.1299. Exact commands for each OS are on this page.

Is CVE-2025-53378 being exploited?

CVE-2025-53378 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-53378 affect?

CVE-2025-53378 affects worry-free business security services. Severity is high (CVSS 7.6). A missing authentication vulnerability in Trend Micro Worry-Free Business Security Services (WFBSS) agent could have allowed an unauthenticated attacker to remotely take control of the agent on affected installations. Also note: this vul

How urgent is CVE-2025-53378?

Priority 41/100. High severity

Software pages

Trend Micro vulnerabilities

Related CVEs

CVE-2025-49487 MEDIUM 6.8 UPGRADE An uncontrolled search path vulnerability in the Trend Micro Worry-Free Business Security Services (WFBSS) age
CVE-2025-49154 HIGH 8.7 DOWNGRADE UPGRADE An insecure access control vulnerability in Trend Micro Apex One and Trend Micro Worry-Free Business Security

References

← Back to latest CVEs