Improper input validation in Trend Micro OfficeScan
Priority HIGH 78CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
Proxy command injection vulnerability in Trend Micro OfficeScan 11 and XG (12) allows remote attackers to execute arbitrary code on vulnerable installations. The specific flaw can be exploited by parsing the T parameter within Proxy.php. Formerly ZDI-CAN-4544.
Why it matters now
EPSS 0.66774 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Trend Micro | Trend Micro OfficeScan | 11, XG (12) | — | No fix listed | CNA |
- Trend Micro OfficeScan VendorTrend Micro Affected 11, XG (12) Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:trendmicro:officescan:11.0:sp1:*:*:*:*:*:* | 11.0 sp1 | Vulnerable | Trendmicro |
| cpe:2.3:a:trendmicro:officescan:12.0:*:*:*:*:*:*:* | 12.0 | Vulnerable | Trendmicro |
- cpe:2.3:a:trendmicro:officescan:11.0:sp1:*:*:*:*:*:* Versions 11.0 sp1 Vulnerable ·Trendmicro
- cpe:2.3:a:trendmicro:officescan:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Trendmicro
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-11394
- 2026-10-03 Alias added: GHSA-2pxr-78xf-pr6j
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-2017-11394 · CVE Program
- CVE-2017-11394 · NVD
- FIRST EPSS
- GHSA-2pxr-78xf-pr6j · GitHub Advisory Database · CC BY 4.0
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