Skip to content
Fencer Vulns
critical 9.8

CVE-2020-28578 in the critical feed json

A vulnerability in Trend Micro InterScan Web Security Virtual Appliance 6.5 SP2 could allow an unauthenticated, remote attacker to send a s…

published 2020-11-18 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-20976

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
73.0%
EPSS 73.0% chance of exploitation in 30 days, percentile 99.4%
public exploits
0
none known

Summary

A vulnerability in Trend Micro InterScan Web Security Virtual Appliance 6.5 SP2 could allow an unauthenticated, remote attacker to send a specially crafted HTTP message and achieve remote code execution with elevated privileges.

Exploit prediction

73.05% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • tenable.com https://www.tenable.com/security/research/tra-2020-63 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Trend Micro Trend Micro InterScan Web Security Virtual Appliance

Classification

Weakness

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.