CVE-2020-7501Network attack vector

Unauthorized project and firmware access via hard-coded credentials

Published Jun 16, 2020 · Updated Aug 4, 2024

Hard-coded credentials in Schneider Electric Vijeo Designer Basic and Vijeo Designer allow remote authenticated users unauthorized project or firmware read/write. The download and upload authentication path accepts a credential embedded in the software instead of validating a deployment-specific secret. Access requires authenticated network reachability to the engineering or HMI transfer interface, and successful use permits reading or writing project or firmware data without authorization.

CVSS severity8.8
High
EPSS probability1.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded credentials in Schneider Electric Vijeo Designer Basic and Vijeo Designer allow remote authenticated users unauthorized project or firmware read/write. The download and upload authentication path accepts a credential embedded in the software instead of validating a deployment-specific secret. Access requires authenticated network reachability to the engineering or HMI transfer interface, and successful use permits reading or writing project or firmware data without authorization.

The record

CVE
CVE-2020-7501
Published
Jun 16, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-798, T1078
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 16, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
T1078Valid Accounts

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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