CVE-2021-22770Network attack vector

Sensitive-information disclosure to authenticated remote users

Published Jul 21, 2021 · Updated Aug 3, 2024

Information exposure in Schneider Electric Easergy T300 firmware 2.7.1 and earlier allows remote authenticated users to read sensitive information. Schneider Electric has not published the affected interface or the operation that exposes the data. Network access and valid low-privileged credentials are required; the reported consequence is limited to confidential data exposure.

CVSS severity6.5
Medium
EPSS probability1.05%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in Schneider Electric Easergy T300 firmware 2.7.1 and earlier allows remote authenticated users to read sensitive information. Schneider Electric has not published the affected interface or the operation that exposes the data. Network access and valid low-privileged credentials are required; the reported consequence is limited to confidential data exposure.

The record

CVE
CVE-2021-22770
Published
Jul 21, 2021
Updated
Aug 3, 2024
Vendor
Schneider Electric
Product
Easergy T300
Classifications
CWE-200
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 21, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=Easergy T300 with firmware V2.7.1 and older

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Schneider Electric · Easergy T300version=Easergy T300 with firmware V2.7.1 and older

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0NIST NVDAV:N/AC:L/Au:S/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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