High 8.8Known exploited (CISA KEV)Published Oct 28, 2019

CVE-2019-18187Trend Micro OfficeScan versions 11.0 and XG (12.0) could be exploited by an attacker utilizing a directory traversal vulnerability to extract files from an arbitrary zip file to a specific folder on…

Updated under an hour ago (2026-10-19 09:00 UTC)

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It affects Trend Micro OfficeScan and 1 other product. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Nov 3, 2021; federal agencies had to remediate by May 3, 2022. Treat that date as your deadline.

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Every CVE for Trend Micro OfficeScan

Exploited in the last 30 days

Trend Micro OfficeScan versions 11.0 and XG (12.0) could be exploited by an attacker utilizing a directory traversal vulnerability to extract files from an arbitrary zip file to a specific folder on the OfficeScan server, which could potentially lead to remote code execution (RCE). The remote process execution is bound to a web service account, which depending on the web platform used may have restricted permissions. An attempted attack requires user authentication.

CVSS: 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-22
Known exploited: Added to CISA KEV Nov 3, 2021; federal remediation due May 3, 2022Apply updates per vendor instructions.
EPSS (exploitation in the next 30 days): 25.12% (percentile 98)
Assigned by: trendmicro
NVD analysis: Analyzed
Record last updated: Oct 29, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Trend Micro Trend Micro OfficeScan trend_micro:officescan (from the name)	Version 11.0, XG (12.0)	CNA record
trendmicro officescan trendmicro:officescan	11.0; xg; xg	NVD

References

https://success.trendmicro.com/solution/000151730x-refsource-misc, broken-link, vendor-advisory
https://web.archive.org/web/20200215171235/https://success.trendmicro.com/solution/000151730vendor-advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-18187us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.