CVE-2020-28578

Name: CVE-2020-28578
Creator: NVD / NIST
Published: 2020-11-18T19:15:11.837+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 72.27%

Last modified Jun 17, 2026

CVE-2020-28578 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 72.27% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

72.27%

99.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions	Update
Trendmicro	Interscan Web Security Virtual Appliance	6.5	Sp2

References

https://success.trendmicro.com/solution/000281954Vendor Advisory
https://www.tenable.com/security/research/tra-2020-63Exploit, Third Party Advisory
https://success.trendmicro.com/solution/000281954Vendor Advisory
https://www.tenable.com/security/research/tra-2020-63Exploit, Third Party Advisory

Timeline

Published: Nov 18, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-28578?

How severe is CVE-2020-28578?

CVE-2020-28578 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 72.27% probability of exploitation in the next 30 days.

How do I fix CVE-2020-28578?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-28578?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST