CVE-2017-11391
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 62.1%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 62.13% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-77
- Affected
- trendmicro/interscan messaging security virtual appliance
- Source
- security@trendmicro.com
EPSS moved from 60.7% on 21 September 2026 to 62.1% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://www.securityfocus.com/bid/100075Third Party Advisory, VDB Entry
- http://www.zerodayinitiative.com/advisories/ZDI-17-502Third Party Advisory, VDB Entry
- https://success.trendmicro.com/solution/1117723Vendor Advisory
- http://www.securityfocus.com/bid/100075Third Party Advisory, VDB Entry
- http://www.zerodayinitiative.com/advisories/ZDI-17-502Third Party Advisory, VDB Entry
- https://success.trendmicro.com/solution/1117723Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.