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Fencer Vulns
high 8.8

CVE-2017-6398 in the critical feed json

An issue was discovered in Trend Micro InterScan Messaging Security (Virtual Appliance) 9.1-1600.

published 2017-03-14 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-15455

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
54.1%
EPSS 54.1% chance of exploitation in 30 days, percentile 99%
public exploits
1
Metasploit

Summary

An issue was discovered in Trend Micro InterScan Messaging Security (Virtual Appliance) 9.1-1600. An authenticated user can execute a terminal command in the context of the web server user (which is root). Besides, the default installation of IMSVA comes with default administrator credentials. The saveCert.imss endpoint takes several user inputs and performs blacklisting. After that, it uses them as arguments to a predefined operating-system command without proper sanitization. However, because of an improper blacklisting rule, it's possible to inject arbitrary commands into it.

Timeline

  1. First public exploit (Metasploit exploit/linux/http/trend_micro_imsva_exec)
  2. Published

Exploit prediction

54.07% chance of exploitation in the next 30 days, higher than 99% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 9.0 AV:N/AC:L/Au:S/C:C/I:C/A:C

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.