Command injection in Trend Micro InterScan Messaging Security Virtual Appliance
Priority HIGH 73CWE-77Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-77.
Summary
Proxy command injection vulnerability in Trend Micro InterScan Messaging Virtual Appliance 9.0 and 9.1 allows remote attackers to execute arbitrary code on vulnerable installations. The specific flaw can be exploited by parsing the "t" parameter within modTMCSS Proxy. Formerly ZDI-CAN-4744.
Why it matters now
EPSS 0.62132 99th percentileScored 2026-11-07
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 InterScan Messaging Security Virtual Appliance | 9.0,9.1 | — | No fix listed | CNA |
- Trend Micro InterScan Messaging Security Virtual Appliance VendorTrend Micro Affected 9.0,9.1 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:trendmicro:interscan_messaging_security_virtual_appliance:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Trendmicro |
| cpe:2.3:a:trendmicro:interscan_messaging_security_virtual_appliance:9.1:*:*:*:*:*:*:* | 9.1 | Vulnerable | Trendmicro |
- cpe:2.3:a:trendmicro:interscan_messaging_security_virtual_appliance:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Trendmicro
- cpe:2.3:a:trendmicro:interscan_messaging_security_virtual_appliance:9.1:*:*:*:*:*:*:* Versions 9.1 Vulnerable ·Trendmicro
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-11391
- 2026-10-03 Alias added: GHSA-j9pc-9px3-mp86
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-2017-11391 · CVE Program
- CVE-2017-11391 · NVD
- FIRST EPSS
- GHSA-j9pc-9px3-mp86 · GitHub Advisory Database · CC BY 4.0
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