CVEs / CVE-2019-18187
CVE-2019-18187: Trend Micro OfficeScan Directory Traversal Vulnerability
- Known exploited in the CISA KEV catalog since 3 Nov 2021
- high 7.5 CVSS 3.1 (NVD)
- EPSS 25.1% chance of exploitation in the next 30 days, higher than 97% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Trend Micro OfficeScan contains a directory traversal vulnerability by extracting files from a zip file to a specific folder on the OfficeScan server, leading to remote code execution.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Trend Micro Trend Micro OfficeScan | Version 11.0, XG (12.0) | — |
Exploitation
| In CISA KEV since | 3 Nov 2021 |
|---|---|
| Due date for US federal agencies | 3 May 2022 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NScored by NVD |
|---|---|
| Weakness | CWE-22 |
References
- CVE-2019-18187 on NVD
- CVE-2019-18187 in the CISA KEV catalog
- https://success.trendmicro.com/solution/000151730 Broken Link, Vendor Advisory
- https://web.archive.org/web/20200215171235/https://success.trendmicro.com/solution/000151730 Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-18187 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.