CVE-2020-6973Network attack vector

Service interruption via stored web-interface scripts

Published Feb 12, 2020 · Updated Aug 4, 2024

Stored XSS in Digi International ConnectPort LTS 32 MEI 1.4.3 allows remote authenticated users to cause a denial of service. The web interface stores attacker-supplied values and later renders them without sufficient output neutralization, executing scripts in a viewer's browser; the affected fields are undisclosed. Exploitation requires high-privileged access and a user to view the stored content; published impact is limited to interrupting service.

CVSS severity6.2
Medium
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Digi International ConnectPort LTS 32 MEI 1.4.3 allows remote authenticated users to cause a denial of service. The web interface stores attacker-supplied values and later renders them without sufficient output neutralization, executing scripts in a viewer's browser; the affected fields are undisclosed. Exploitation requires high-privileged access and a user to view the stored content; published impact is limited to interrupting service.

The record

CVE
CVE-2020-6973
Published
Feb 12, 2020
Updated
Aug 4, 2024
Vendor
Digi International
Product
ConnectPort LTS 32 MEI
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 12, 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=Firmware Version 1.4.3 (82002228_K 08/09/2018), bios Version 1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Digi International · ConnectPort LTS 32 MEIversion=Firmware Version 1.4.3 (82002228_K 08/09/2018), bios Version 1.2

Published CVSS scores

6.3NIST NVDAV:N/AC:M/Au:S/C:N/I:N/A:C
6.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:N/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

No public exploit references are available in this record.

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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