How severe is CVE-2019-18188?

CVE-2019-18188 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 high, integrity none, and availability none.

Is CVE-2019-18188 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-18188?

CVE-2019-18188 affects Trendmicro Apex One. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-18188?

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-2019-18188 published?

CVE-2019-18188 was published on 2019-10-28 and last updated on 2026-06-17.

CVE-2019-18188

CVE-2019-18188 is a high-severity vulnerability in Trendmicro Apex One 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-77.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Trendmicro Apex One
Published: 2019-10-28
Last modified: 2026-06-17

Description

Trend Micro Apex One could be exploited by an attacker utilizing a command injection vulnerability to extract files from an arbitrary zip file to a specific folder on the Apex One server, which could potentially lead to remote code execution (RCE). The remote process execution is bound to the IUSR account, which has restricted permission and is unable to make major system changes. An attempted attack requires user authentication.

Frequently asked questions

What is CVE-2019-18188?: Trend Micro Apex One could be exploited by an attacker utilizing a command injection vulnerability to extract files from an arbitrary zip file to a specific folder on the Apex One server, which could potentially lead to remote code execution (RCE). The remote process execution is bound to the IUSR account, which has restricted permission and is unable to make major system changes. An attempted attack requires user authentication.
How severe is CVE-2019-18188?: CVE-2019-18188 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 high, integrity none, and availability none.
Is CVE-2019-18188 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-18188?: CVE-2019-18188 affects Trendmicro Apex One. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-18188?: 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-2019-18188 published?: CVE-2019-18188 was published on 2019-10-28 and last updated on 2026-06-17.

References

https://success.trendmicro.com/solution/000151731

Affected products (1)

cpe:2.3:a:trendmicro:apex_one:2019:*:*:*:*:*:*:*

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