How severe is CVE-2018-18328?

CVE-2018-18328 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-18328 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18328?

CVE-2018-18328 primarily affects Trendmicro Antivirus For Mac 2017. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-18328?

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-2018-18328 published?

CVE-2018-18328 was published on 2018-10-23 and last updated on 2026-06-17.

CVE-2018-18328

CVE-2018-18328 is a high-severity vulnerability in Trendmicro Antivirus For Mac 2017 with a CVSS 3.x base score of 7.8. 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Trendmicro Antivirus For Mac 2017
Published: 2018-10-23
Last modified: 2026-06-17

Description

A KERedirect Untrusted Pointer Dereference Privilege Escalation vulnerability in Trend Micro Antivirus for Mac (Consumer) 7.0 (2017) and above could allow a local attacker to escalate privileges on vulnerable installations. The issue results from the lack of proper validation function on 0x6F6A offset user-supplied buffer. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

Frequently asked questions

What is CVE-2018-18328?: A KERedirect Untrusted Pointer Dereference Privilege Escalation vulnerability in Trend Micro Antivirus for Mac (Consumer) 7.0 (2017) and above could allow a local attacker to escalate privileges on vulnerable installations. The issue results from the lack of proper validation function on 0x6F6A offset user-supplied buffer. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
How severe is CVE-2018-18328?: CVE-2018-18328 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-18328 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18328?: CVE-2018-18328 primarily affects Trendmicro Antivirus For Mac 2017. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-18328?: 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-2018-18328 published?: CVE-2018-18328 was published on 2018-10-23 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:trendmicro:antivirus_for_mac_2017:*:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:antivirus_for_mac_2018:*:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:antivirus_for_mac_2019:*:*:*:*:*:*:*:*

More vulnerabilities in Trendmicro Antivirus For Mac 2017

CVE-2018-18329 — High (CVSS 7.8): A KERedirect Untrusted Pointer Dereference Privilege Escalation vulnerability in Trend Micro Antivirus for Mac…
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