How severe is CVE-2018-6237?

CVE-2018-6237 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-6237 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-6237?

CVE-2018-6237 primarily affects Trendmicro Smart Protection Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-6237?

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.

When was CVE-2018-6237 published?

CVE-2018-6237 was published on 2018-05-25 and last updated on 2026-06-17.

CVE-2018-6237

CVE-2018-6237 is a high-severity vulnerability in Trendmicro Smart Protection Server with a CVSS 3.x base score of 7.5. 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-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.8
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Trendmicro Smart Protection Server
Published: 2018-05-25
Last modified: 2026-06-17

Description

A vulnerability in Trend Micro Smart Protection Server (Standalone) 3.x could allow an unauthenticated remote attacker to manipulate the product to send a large number of specially crafted HTTP requests to potentially cause the file system to fill up, eventually causing a denial of service (DoS) situation.

Frequently asked questions

What is CVE-2018-6237?: A vulnerability in Trend Micro Smart Protection Server (Standalone) 3.x could allow an unauthenticated remote attacker to manipulate the product to send a large number of specially crafted HTTP requests to potentially cause the file system to fill up, eventually causing a denial of service (DoS) situation.
How severe is CVE-2018-6237?: CVE-2018-6237 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-6237 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-6237?: CVE-2018-6237 primarily affects Trendmicro Smart Protection Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-6237?: 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.
When was CVE-2018-6237 published?: CVE-2018-6237 was published on 2018-05-25 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:trendmicro:smart_protection_server:3.0:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:smart_protection_server:3.1:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:smart_protection_server:3.2:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:smart_protection_server:3.3:*:*:*:*:*:*:*

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