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Vulnerability record · CVE-2018-6233 · published 25 May 2018

CVE-2018-6233: Trendmicro antivirus\+ classic buffer overflow vulnerability

Trendmicro · Antivirus\+

A buffer overflow privilege escalation vulnerability in Trend Micro Maximum Security (Consumer) 2018 could allow a local attacker to escalate privileges on vulnerable installations due to a flaw within processing of IOCTL 0x222060 by the tmnciesc.sys driver. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

7.8 CVSS 3.0 High EPSS 0.50% · top 59.3% CWE-120 · Classic buffer overflow
7.8CVSS 3.0 base score, v2 7.2
0.50%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

A buffer overflow privilege escalation vulnerability in Trend Micro Maximum Security (Consumer) 2018 could allow a local attacker to escalate privileges on vulnerable installations due to a flaw within processing of IOCTL 0x222060 by the tmnciesc.sys driver. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://esupport.trendmicro.com/en-us/home/pages/technical-support/1119591.aspx MitigationVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-18-267/ Third Party AdvisoryVDB Entry
https://esupport.trendmicro.com/en-us/home/pages/technical-support/1119591.aspx MitigationVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-18-267/ Third Party AdvisoryVDB Entry

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Source: NIST National Vulnerability Database (record CVE-2018-6233), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.