CVE-2020-8606Public exploitNetwork attack vector

Administrator access via Apache Solr authentication bypass

Published May 27, 2020 · Updated Aug 4, 2024

Authentication bypass in Trend Micro InterScan Web Security Virtual Appliance 6.5 allows remote attackers to gain administrator access. The Apache Solr component lacks proper authentication, and the proxy service on its default port 8080 relays unauthenticated requests to internal Solr services. The proxy must be set to the affected port; successful bypass grants administrator access to part of the application.

CVSS severity9.8
Critical
EPSS probability72.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Trend Micro InterScan Web Security Virtual Appliance 6.5 allows remote attackers to gain administrator access. The Apache Solr component lacks proper authentication, and the proxy service on its default port 8080 relays unauthenticated requests to internal Solr services. The proxy must be set to the affected port; successful bypass grants administrator access to part of the application.

The record

CVE
CVE-2020-8606
Published
May 27, 2020
Updated
Aug 4, 2024
Vendor
Trend Micro
Product
InterScan Web Security Virtual Appliance
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Trend Micro · InterScan Web Security Virtual Applianceversion=6.5

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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