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Fencer Vulns
medium 5.5

CVE-2020-27018 json

Trend Micro InterScan Messaging Security Virtual Appliance (IMSVA) 9.1 is vulnerable to a server side request forgery vulnerability which c…

published 2020-11-09 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-19542

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.5%
EPSS 3.5% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

Trend Micro InterScan Messaging Security Virtual Appliance (IMSVA) 9.1 is vulnerable to a server side request forgery vulnerability which could allow an authenticated attacker to abuse the product's web server and grant access to web resources or parts of local files. An attacker must already have obtained authenticated privileges on the product to exploit this vulnerability.

Exploit prediction

3.51% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • success.trendmicro.com https://success.trendmicro.com/solution/000279833 referenced PoC, tagged "exploit" by a source, unverified
  • sec-consult.com https://sec-consult.com/en/blog/advisories/vulnerabilities-in-trend-micro-interscan-messaging-security-virtual-appliance-imsva/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • Trend Micro Trend Micro InterScan Messaging Security Virtual Appliance (IMSVA)

Classification

Weakness
  • CWE-918 Server-Side Request Forgery

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.