How severe is CVE-2021-25241?

CVE-2021-25241 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-25241 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25241?

CVE-2021-25241 primarily affects Trendmicro Apex One. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-25241?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-25241 published?

CVE-2021-25241 was published on 2021-02-04 and last updated on 2026-06-17.

CVE-2021-25241

CVE-2021-25241 is a medium-severity vulnerability in Trendmicro Apex One with a CVSS 3.x base score of 5.3. 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-918.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Trendmicro Apex One
Published: 2021-02-04
Last modified: 2026-06-17

Description

A server-side request forgery (SSRF) information disclosure vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1 could allow an unauthenticated user to locate online agents via a sweep.

Frequently asked questions

What is CVE-2021-25241?: A server-side request forgery (SSRF) information disclosure vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1 could allow an unauthenticated user to locate online agents via a sweep.
How severe is CVE-2021-25241?: CVE-2021-25241 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-25241 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25241?: CVE-2021-25241 primarily affects Trendmicro Apex One. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-25241?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-25241 published?: CVE-2021-25241 was published on 2021-02-04 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:trendmicro:apex_one:2019:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:worry-free_business_security:10.0:sp1:*:*:*:*:*:*

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