How severe is CVE-2018-3608?

CVE-2018-3608 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-2018-3608 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-3608?

CVE-2018-3608 primarily affects Trendmicro Antivirus + Security. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-3608?

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-2018-3608 published?

CVE-2018-3608 was published on 2018-07-06 and last updated on 2026-06-17.

CVE-2018-3608

CVE-2018-3608 is a critical-severity vulnerability in Trendmicro Antivirus + Security 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-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Trendmicro Antivirus + Security
Published: 2018-07-06
Last modified: 2026-06-17

Description

A vulnerability in Trend Micro Maximum Security's (Consumer) 2018 (versions 12.0.1191 and below) User-Mode Hooking (UMH) driver could allow an attacker to create a specially crafted packet that could alter a vulnerable system in such a way that malicious code could be injected into other processes.

Frequently asked questions

What is CVE-2018-3608?: A vulnerability in Trend Micro Maximum Security's (Consumer) 2018 (versions 12.0.1191 and below) User-Mode Hooking (UMH) driver could allow an attacker to create a specially crafted packet that could alter a vulnerable system in such a way that malicious code could be injected into other processes.
How severe is CVE-2018-3608?: CVE-2018-3608 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-2018-3608 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-3608?: CVE-2018-3608 primarily affects Trendmicro Antivirus + Security. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-3608?: 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-2018-3608 published?: CVE-2018-3608 was published on 2018-07-06 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:a:trendmicro:antivirus_\+_security:*:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:internet_security:*:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:maximum_security:*:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:premium_security:*:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:officescan:11.0:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:officescan:12.0:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:officescan_monthly:11.0:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:officescan_monthly:12.0:*:*:*:*:*:*:*

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