CVE-2019-18187

Name: CVE-2019-18187
Creator: NVD / NIST
Published: 2019-10-28T20:15:11.003+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10Actively ExploitedEPSS 25.12%

Last modified Jun 17, 2026

CVE-2019-18187 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. CISA has confirmed active exploitation in the wild. EPSS estimates a 25.12% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

25.12%

97.7th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by May 3, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Trendmicro	Officescan	11.0	Sp1
Trendmicro	Officescan	xg	—

References

https://success.trendmicro.com/solution/000151730Broken Link, Vendor Advisory
https://success.trendmicro.com/solution/000151730Broken 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

Timeline

Published: Oct 28, 2019
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2019-18187?

How severe is CVE-2019-18187?

CVE-2019-18187 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 25.12% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2019-18187?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-18187?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST