Path traversal in Trend Micro OfficeScan
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Trend Micro | Trend Micro OfficeScan | Version 11.0, XG (12.0) | — | No fix listed | CNA |
- Trend Micro OfficeScan VendorTrend Micro Affected Version 11.0, XG (12.0) Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:trendmicro:officescan:11.0:sp1:*:*:*:*:*:* | 11.0 sp1 | Vulnerable | Trendmicro |
| cpe:2.3:a:trendmicro:officescan:xg:*:*:*:*:*:*:* | xg | Vulnerable | Trendmicro |
| cpe:2.3:a:trendmicro:officescan:xg:sp1:*:*:*:*:*:* | xg sp1 | Vulnerable | Trendmicro |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:trendmicro:officescan:11.0:sp1:*:*:*:*:*:* Versions 11.0 sp1 Vulnerable ·Trendmicro
- cpe:2.3:a:trendmicro:officescan:xg:*:*:*:*:*:*:* Versions xg Vulnerable ·Trendmicro
- cpe:2.3:a:trendmicro:officescan:xg:sp1:*:*:*:*:*:* Versions xg sp1 Vulnerable ·Trendmicro
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2021-11-03 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2019-18187
- 2026-10-03 Alias added: GHSA-cjq6-9jh6-x2vg
References
More Trend Micro vulnerabilities
- TI-2025-34668 OS command injection in Trend Micro Apex One KEVCVSS 3.1CRITICAL 9.8
- TI-2022-10115 Insufficient verification of data authenticity in Trend Micro Apex Central KEVCVSS 3.1CRITICAL 9.8
- TI-2020-06895 Trend Micro Apex One (2019) and OfficeScan XG server contain a vulnerable EXE file that… KEVCVSS 3.1CRITICAL 9.8
- TI-2021-14867 Unrestricted file upload in Trend Micro Apex One KEVCVSS 3.1HIGH 8.8
- TI-2020-06795 Injection in Trend Micro OfficeScan, Trend Micro Apex One, Trend Micro Worry-Free… KEVCVSS 3.1HIGH 8.8
- TI-2020-06794 A migration tool component of Trend Micro Apex One (2019) and OfficeScan XG contains a… KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2019-18187 · CVE Program
- CVE-2019-18187 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-cjq6-9jh6-x2vg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences