CVE-2022-32142Network attack vector

Service interruption via unchecked request offsets

Published Jun 24, 2022 · Updated Sep 17, 2024

Out-of-bounds access in the CODESYS V2 communication server before 2.4.7.57 allows remote authenticated users to crash it or overwrite memory. The server uses invalid offsets from a crafted service request for an internal read or write beyond the intended memory bounds. A controller login, or no configured level 1 online password, is required; exploitation can interrupt the runtime or corrupt local files.

CVSS severity8.1
High
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

Out-of-bounds access in the CODESYS V2 communication server before 2.4.7.57 allows remote authenticated users to crash it or overwrite memory. The server uses invalid offsets from a crafted service request for an internal read or write beyond the intended memory bounds. A controller login, or no configured level 1 online password, is required; exploitation can interrupt the runtime or corrupt local files.

The record

CVE
CVE-2022-32142
Published
Jun 24, 2022
Updated
Sep 17, 2024
Vendor
CODESYS GmbH
Product
CODESYS Runtime Toolkit
Classifications
CWE-823, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 24, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=V2 <V2.4.7.57

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CODESYS GmbH · CODESYS Runtime Toolkitversion=V2 <V2.4.7.57
CODESYS GmbH · CODESYS Runtime PLCWinNTversion=V2 <V2.4.7.57

Published CVSS scores

8.1CERT VDECVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
5.5NIST NVDAV:N/AC:L/Au:S/C:N/I:P/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-823Use of Out-of-range Pointer Offset
T1499Endpoint Denial of Service

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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