CVE-2020-7507Network attack vector

Service interruption via repeated login resource exhaustion

Published Jun 16, 2020 · Updated Aug 4, 2024

Uncontrolled resource consumption in Schneider Electric Easergy T300 firmware 1.5.2 and earlier allows remote attackers to interrupt service. The login interface permits repeated sessions to consume resources without an effective bound. Network access to the device is sufficient; successful exhaustion interrupts availability without reported data disclosure or modification.

CVSS severity7.5
High
EPSS probability1.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled resource consumption in Schneider Electric Easergy T300 firmware 1.5.2 and earlier allows remote attackers to interrupt service. The login interface permits repeated sessions to consume resources without an effective bound. Network access to the device is sufficient; successful exhaustion interrupts availability without reported data disclosure or modification.

The record

CVE
CVE-2020-7507
Published
Jun 16, 2020
Updated
Aug 4, 2024
Vendor
Schneider Electric
Product
Easergy T300
Classifications
CWE-400, T0814
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

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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 (Firmware version 1.5.2 and older)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Schneider Electric · Easergy T300version=Easergy T300 (Firmware version 1.5.2 and older)

Published CVSS scores

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

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-400Uncontrolled Resource Consumption
T0814Denial of Service

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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