How severe is CVE-2018-6231?

CVE-2018-6231 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-6231 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-6231?

CVE-2018-6231 affects Trendmicro Smart Protection Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-6231?

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

When was CVE-2018-6231 published?

CVE-2018-6231 was published on 2018-03-15 and last updated on 2026-06-17.

CVE-2018-6231

CVE-2018-6231 is a critical-severity vulnerability in Trendmicro Smart Protection Server with a CVSS 3.x base score of 9.8. 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-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 7% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Trendmicro Smart Protection Server
Published: 2018-03-15
Last modified: 2026-06-17

Description

A server auth command injection authentication bypass vulnerability in Trend Micro Smart Protection Server (Standalone) versions 3.3 and below could allow remote attackers to escalate privileges on vulnerable installations.

Frequently asked questions

What is CVE-2018-6231?: A server auth command injection authentication bypass vulnerability in Trend Micro Smart Protection Server (Standalone) versions 3.3 and below could allow remote attackers to escalate privileges on vulnerable installations.
How severe is CVE-2018-6231?: CVE-2018-6231 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-6231 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-6231?: CVE-2018-6231 affects Trendmicro Smart Protection Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-6231?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-6231 published?: CVE-2018-6231 was published on 2018-03-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:trendmicro:smart_protection_server:*:*:*:*:*:*:*:*

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