CVE-2022-34757

Communication disclosure via weak SSH cipher suites

Published Jul 13, 2022 · Updated Sep 16, 2024

Weak SSH cryptography in Schneider Electric Easergy P5 firmware before V01.401.102 allows attackers to observe protected communications. The relay's SSH service negotiates weak cipher suites for Easergy Pro sessions instead of restricting negotiation to strong cryptography. Attackers must intercept the management connection, and the published consequence is limited to disclosure of protected communication details.

CVSS severity6.7
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak SSH cryptography in Schneider Electric Easergy P5 firmware before V01.401.102 allows attackers to observe protected communications. The relay's SSH service negotiates weak cipher suites for Easergy Pro sessions instead of restricting negotiation to strong cryptography. Attackers must intercept the management connection, and the published consequence is limited to disclosure of protected communication details.

The record

CVE
CVE-2022-34757
Published
Jul 13, 2022
Updated
Sep 16, 2024
Vendor
Schneider Electric
Product
Easergy P5
Classifications
CWE-327, T0830
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=Firmware <V01.401.102

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Schneider Electric · Easergy P5version=Firmware <V01.401.102

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
6.7Schneider ElectricCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/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.

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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-327Use of a Broken or Risky Cryptographic Algorithm
T0830Adversary-in-the-Middle

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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