How severe is CVE-2021-25236?

CVE-2021-25236 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-2021-25236 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25236?

CVE-2021-25236 primarily affects Trendmicro Officescan. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-25236?

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

When was CVE-2021-25236 published?

CVE-2021-25236 was published on 2021-02-04 and last updated on 2026-06-17.

CVE-2021-25236

CVE-2021-25236 is a medium-severity vulnerability in Trendmicro Officescan 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% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Trendmicro Officescan
Published: 2021-02-04
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2021-25236?: A server-side request forgery (SSRF) information disclosure vulnerability in Trend Micro OfficeScan XG SP1 and Worry-Free Business Security 10.0 SP1 could allow an unauthenticated user to locate online agents via a specific sweep.
How severe is CVE-2021-25236?: CVE-2021-25236 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-2021-25236 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25236?: CVE-2021-25236 primarily affects Trendmicro Officescan. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-25236?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-25236 published?: CVE-2021-25236 was published on 2021-02-04 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:trendmicro:officescan:xg:sp1:*:*:*:*:*:*
cpe:2.3:a:trendmicro:worry-free_business_security:10.0:sp1:*:*:*:*:*:*

More vulnerabilities in Trendmicro Officescan

CVE-2020-8599 — Critical (CVSS 9.8): Trend Micro Apex One (2019) and OfficeScan XG server contain a vulnerable EXE file that could allow a remote attacker…
CVE-2020-8598 — Critical (CVSS 9.8): Trend Micro Apex One (2019), OfficeScan XG and Worry-Free Business Security (9.0, 9.5, 10.0) server contains a…
CVE-2019-18189 — Critical (CVSS 9.8): A directory traversal vulnerability in Trend Micro Apex One, OfficeScan (11.0, XG) and Worry-Free Business Security…
CVE-2018-3608 — Critical (CVSS 9.8): A vulnerability in Trend Micro Maximum Security's (Consumer) 2018 (versions 12.0.1191 and below) User-Mode Hooking…
CVE-2017-14089 — Critical (CVSS 9.8): An Unauthorized Memory Corruption vulnerability in Trend Micro OfficeScan 11.0 and XG may allow remote unauthenticated…
CVE-2017-11394 — Critical (CVSS 9.8): Proxy command injection vulnerability in Trend Micro OfficeScan 11 and XG (12) allows remote attackers to execute…

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