CVE-2022-22723

Unauthenticated code execution via unchecked packet copy

Published Feb 4, 2022 · Updated Aug 3, 2024

Buffer overflow in Schneider Electric Easergy P5 firmware before 01.401.101 allows remote attackers to execute code via crafted network packets. The undisclosed packet-processing path copies attacker-controlled packet data without checking the destination buffer size. Unauthenticated access to the adjacent device network is sufficient; exploitation can crash relay software or run arbitrary code, disrupting protection and GOOSE tripping.

CVSS severity8.8
High
EPSS probability2.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Schneider Electric Easergy P5 firmware before 01.401.101 allows remote attackers to execute code via crafted network packets. The undisclosed packet-processing path copies attacker-controlled packet data without checking the destination buffer size. Unauthenticated access to the adjacent device network is sufficient; exploitation can crash relay software or run arbitrary code, disrupting protection and GOOSE tripping.

The record

CVE
CVE-2022-22723
Published
Feb 4, 2022
Updated
Aug 3, 2024
Vendor
Schneider Electric
Product
Easergy P5
Classifications
CWE-120, T0814
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 4, 2022CVE 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 P5 (All firmware versions prior to V01.401.101)

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Schneider Electric · Easergy P5version=Easergy P5 (All firmware versions prior to V01.401.101)

Published CVSS scores

8.8NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8CISACVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.3NVDAV:A/AC:L/Au:N/C:C/I:C/A:C

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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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