CVE-2020-7506Network attack vector

Information disclosure via firmware archive tar handling

Published Jun 16, 2020 · Updated Aug 4, 2024

Information Exposure in Schneider Electric Easergy T300 Firmware V1.5.2 and prior allows remote attackers to disclose firmware archive contents. The firmware archive can be packed or unpacked with the usual tar archiver, exposing controller and module information. The network-reachable attack requires no authentication or user interaction and is bounded to confidentiality exposure without reported integrity or availability impact.

CVSS severity7.5
High
EPSS probability1.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Information Exposure in Schneider Electric Easergy T300 Firmware V1.5.2 and prior allows remote attackers to disclose firmware archive contents. The firmware archive can be packed or unpacked with the usual tar archiver, exposing controller and module information. The network-reachable attack requires no authentication or user interaction and is bounded to confidentiality exposure without reported integrity or availability impact.

The record

CVE
CVE-2020-7506
Published
Jun 16, 2020
Updated
Aug 4, 2024
Vendor
Schneider Electric
Product
Easergy T300
Classifications
CWE-200
Attack vector
network
Privileges
unauthenticated

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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=Easergy T300 Firmware V1.5.2 and prior

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Schneider Electric · Easergy T300version=Easergy T300 Firmware V1.5.2 and prior

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Information Exposure

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo