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CVE data sourced from NIST NVD · Documentation links from official sources
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Codesys

Manufacturer-independent IEC 61131-3 development environment and runtime. Used by 500+ device manufacturers. Products include CODESYS Runtime, SoftMotion, Safety, and Visualization.

https://www.codesys.com/ →
162
Total CVEs
9
Resources
23
CRIT
93
HIGH
45
MED
1
LOW
CVEsCVEsSpecsTech SpecsDocsTech DocsImplImplementationsExamplesExamples
45 / 162
CVE-2025-0694MEDIUM

Insufficient path validation in CODESYS Control allows low privileged attackers with physical access to gain full filesystem access.

Mar 18, 2025
6.6
CVE-2023-37559MEDIUM

After successful authentication as a user in multiple Codesys products in multiple versions, specific crafted network communication requests with inconsistent content can cause the CmpAppForce component to read internally from an invalid address, potentially leading to a denial-of-service condition. This vulnerability is different to CVE-2023-37558

Aug 3, 2023
6.5
CVE-2023-37558MEDIUM

After successful authentication as a user in multiple Codesys products in multiple versions, specific crafted network communication requests with inconsistent content can cause the CmpAppForce component to read internally from an invalid address, potentially leading to a denial-of-service condition. This vulnerability is different to CVE-2023-37559

Aug 3, 2023
6.5
CVE-2023-37557MEDIUM

After successful authentication as a user in multiple Codesys products in multiple versions, specific crafted remote communication requests can cause the CmpAppBP component to overwrite a heap-based buffer, which can lead to a denial-of-service condition.

Aug 3, 2023
6.5
CVE-2023-37556MEDIUM

In multiple versions of multiple Codesys products, after successful authentication as a user, specific crafted network communication requests with inconsistent content can cause the CmpAppBP component to read internally from an invalid address, potentially leading to a denial-of-service condition. This vulnerability is different to CVE-2023-37552, CVE-2023-37553, CVE-2023-37554 and CVE-2023-37555.

Aug 3, 2023
6.5
CVE-2023-37555MEDIUM

In multiple versions of multiple Codesys products, after successful authentication as a user, specific crafted network communication requests with inconsistent content can cause the CmpAppBP component to read internally from an invalid address, potentially leading to a denial-of-service condition. This vulnerability is different to CVE-2023-37552, CVE-2023-37553, CVE-2023-37554 and CVE-2023-37556.

Aug 3, 2023
6.5
CVE-2023-37554MEDIUM

In multiple versions of multiple Codesys products, after successful authentication as a user, specific crafted network communication requests with inconsistent content can cause the CmpAppBP component to read internally from an invalid address, potentially leading to a denial-of-service condition. This vulnerability is different to CVE-2023-37552, CVE-2023-37553, CVE-2023-37555 and CVE-2023-37556.

Aug 3, 2023
6.5
CVE-2023-37553MEDIUM

In multiple versions of multiple Codesys products, after successful authentication as a user, specific crafted network communication requests with inconsistent content can cause the CmpAppBP component to read internally from an invalid address, potentially leading to a denial-of-service condition. This vulnerability is different to CVE-2023-37552, CVE-2023-37554, CVE-2023-37555 and CVE-2023-37556.

Aug 3, 2023
6.5
CVE-2023-37552MEDIUM

In multiple versions of multiple Codesys products, after successful authentication as a user, specific crafted network communication requests with inconsistent content can cause the CmpAppBP component to read internally from an invalid address, potentially leading to a denial-of-service condition. This vulnerability is different to CVE-2023-37553, CVE-2023-37554, CVE-2023-37555 and CVE-2023-37556.

Aug 3, 2023
6.5
CVE-2023-37551MEDIUM

In multiple Codesys products in multiple versions, after successful authentication as a user, specially crafted network communication requests can utilize the CmpApp component to download files with any file extensions to the controller. In contrast to the regular file download via CmpFileTransfer, no filtering of certain file types is performed here. As a result, the integrity of the CODESYS control runtime system may be compromised by the files loaded onto the controller.

Aug 3, 2023
6.5
CVE-2023-37550MEDIUM

In multiple Codesys products in multiple versions, after successful authentication as a user, specific crafted network communication requests with inconsistent content can cause the CmpApp component to read internally from an invalid address, potentially leading to a denial-of-service condition. This vulnerability is different to CVE-2023-37545, CVE-2023-37546, CVE-2023-37547, CVE-2023-37548 and CVE-2023-37549.

Aug 3, 2023
6.5
CVE-2023-37549MEDIUM

In multiple Codesys products in multiple versions, after successful authentication as a user, specific crafted network communication requests with inconsistent content can cause the CmpApp component to read internally from an invalid address, potentially leading to a denial-of-service condition. This vulnerability is different to CVE-2023-37545, CVE-2023-37546, CVE-2023-37547, CVE-2023-37548 and CVE-2023-37550

Aug 3, 2023
6.5
CVE-2023-37548MEDIUM

In multiple Codesys products in multiple versions, after successful authentication as a user, specific crafted network communication requests with inconsistent content can cause the CmpApp component to read internally from an invalid address, potentially leading to a denial-of-service condition. This vulnerability is different to CVE-2023-37545, CVE-2023-37546, CVE-2023-37547, CVE-2023-37549 and CVE-2023-37550

Aug 3, 2023
6.5
CVE-2023-37547MEDIUM

In multiple Codesys products in multiple versions, after successful authentication as a user, specific crafted network communication requests with inconsistent content can cause the CmpApp component to read internally from an invalid address, potentially leading to a denial-of-service condition. This vulnerability is different to CVE-2023-37545, CVE-2023-37546, CVE-2023-37548, CVE-2023-37549 and CVE-2023-37550

Aug 3, 2023
6.5
CVE-2023-37546MEDIUM

In multiple Codesys products in multiple versions, after successful authentication as a user, specific crafted network communication requests with inconsistent content can cause the CmpApp component to read internally from an invalid address, potentially leading to a denial-of-service condition. This vulnerability is different to CVE-2023-37545, CVE-2023-37547, CVE-2023-37548, CVE-2023-37549 and CVE-2023-37550

Aug 3, 2023
6.5
CVE-2023-37545MEDIUM

In multiple Codesys products in multiple versions, after successful authentication as a user, specific crafted network communication requests with inconsistent content can cause the CmpApp component to read internally from an invalid address, potentially leading to a denial-of-service condition. This vulnerability is different to CVE-2023-37546, CVE-2023-37547, CVE-2023-37548, CVE-2023-37549, CVE-2023-37550

Aug 3, 2023
6.5
CVE-2022-47393MEDIUM

An authenticated, remote attacker may use a Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple versions of multiple CODESYS products to force a denial-of-service situation.

May 15, 2023
6.5
CVE-2022-47392MEDIUM

An authenticated, remote attacker may use a improper input validation vulnerability in the CmpApp/CmpAppBP/CmpAppForce Components of multiple CODESYS products in multiple versions to read from an invalid address which can lead to a denial-of-service condition.

May 15, 2023
6.5
CVE-2022-47378MEDIUM

Multiple CODESYS products in multiple versions are prone to a improper input validation vulnerability. An authenticated remote attacker may craft specific requests that use the vulnerability leading to a denial-of-service condition.

May 15, 2023
6.5
CVE-2022-32141MEDIUM

Multiple CODESYS Products are prone to a buffer over read. A low privileged remote attacker may craft a request with an invalid offset, which can cause an internal buffer over-read, resulting in a denial-of-service condition. User interaction is not required.

Jun 24, 2022
6.5
CVE-2022-32140MEDIUM

Multiple CODESYS products are affected to a buffer overflow.A low privileged remote attacker may craft a request, which can cause a buffer copy without checking the size of the service, resulting in a denial-of-service condition. User Interaction is not required.

Jun 24, 2022
6.5
CVE-2022-32139MEDIUM

In multiple CODESYS products, a low privileged remote attacker may craft a request, which cause an out-of-bounds read, resulting in a denial-of-service condition. User Interaction is not required.

Jun 24, 2022
6.5
CVE-2022-32136MEDIUM

In multiple CODESYS products, a low privileged remote attacker may craft a request that cause a read access to an uninitialized pointer, resulting in a denial-of-service. User interaction is not required.

Jun 24, 2022
6.5
CVE-2022-22513MEDIUM

An authenticated remote attacker can cause a null pointer dereference in the CmpSettings component of the affected CODESYS products which leads to a crash.

Apr 7, 2022
6.5
CVE-2021-34596MEDIUM

A crafted request may cause a read access to an uninitialized pointer in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition.

Oct 26, 2021
6.5
CVE-2020-12068MEDIUM

An issue was discovered in CODESYS Development System before 3.5.16.0. CODESYS WebVisu and CODESYS Remote TargetVisu are susceptible to privilege escalation.

May 14, 2020
6.5
CVE-2020-7052MEDIUM

CODESYS Control V3, Gateway V3, and HMI V3 before 3.5.15.30 allow uncontrolled memory allocation which can result in a remote denial of service condition.

Jan 24, 2020
6.5
CVE-2019-19789MEDIUM

3S-Smart CODESYS SP Realtime NT before V2.3.7.28, CODESYS Runtime Toolkit 32 bit full before V2.4.7.54, and CODESYS PLCWinNT before V2.4.7.54 allow a NULL pointer dereference.

Dec 20, 2019
6.5
CVE-2019-13542MEDIUM

3S-Smart Software Solutions GmbH CODESYS V3 OPC UA Server, all versions 3.5.11.0 to 3.5.15.0, allows an attacker to send crafted requests from a trusted OPC UA client that cause a NULL pointer dereference, which may trigger a denial-of-service condition.

Sep 17, 2019
6.5
CVE-2011-5058MEDIUM

The CmbWebserver.dll module of the Control service in 3S CoDeSys 3.4 SP4 Patch 2 allows remote attackers to create arbitrary directories under the web root by specifying a non-existent directory using \ (backslash) characters in an HTTP GET request.

Jan 10, 2012
6.4
CVE-2025-41739MEDIUM

An unauthenticated remote attacker, who beats a race condition, can exploit a flaw in the communication servers of the CODESYS Control runtime system on Linux and QNX to trigger an out-of-bounds read via crafted socket communication, potentially causing a denial of service.

Dec 1, 2025
5.9
CVE-2025-41658MEDIUM

CODESYS Runtime Toolkit-based products may expose sensitive files to local low-privileged operating system users due to default file permissions.

Aug 4, 2025
5.5
CVE-2022-1794MEDIUM

The CODESYS OPC DA Server prior V3.5.18.20 stores PLC passwords as plain text in its configuration file so that it is visible to all authorized Microsoft Windows users of the system.

Jul 11, 2022
5.5
CVE-2019-5106MEDIUM

A hard-coded encryption key vulnerability exists in the authentication functionality of WAGO e!Cockpit version 1.5.1.1. An attacker with access to communications between e!Cockpit and CoDeSyS Gateway can trivially recover the password of any user attempting to log in, in plain text.

Mar 11, 2020
5.5
CVE-2025-2595MEDIUM

An unauthenticated remote attacker can bypass the user management in CODESYS Visualization and read visualization template files or static elements by means of forced browsing.

Apr 23, 2025
5.3
CVE-2019-9011MEDIUM

In Pilz PMC programming tool 3.x before 3.5.17 (based on CODESYS Development System), an attacker can identify valid usernames.

Dec 26, 2022
5.3
CVE-2022-1989MEDIUM

All CODESYS Visualization versions before V4.2.0.0 generate a login dialog vulnerable to information exposure allowing a remote, unauthenticated attacker to enumerate valid users.

Aug 23, 2022
5.3
CVE-2022-31803MEDIUM

In CODESYS Gateway Server V2 an insufficient check for the activity of TCP client connections allows an unauthenticated attacker to consume all available TCP connections and prevent legitimate users or clients from establishing a new connection to the CODESYS Gateway Server V2. Existing connections are not affected and therefore remain intact.

Jun 24, 2022
5.3
CVE-2021-30187MEDIUM

CODESYS V2 runtime system SP before 2.4.7.55 has Improper Neutralization of Special Elements used in an OS Command.

May 25, 2021
5.3
CVE-2018-8836MEDIUM

Wago 750 Series PLCs with firmware version 10 and prior include a remote attack may take advantage of an improper implementation of the 3 way handshake during a TCP connection affecting the communications with commission and service tools. Specially crafted packets may also be sent to Port 2455/TCP/IP, used in Codesys management software, which may result in a denial-of-service condition of communications with commissioning and service tools.

Apr 3, 2018
5.3
CVE-2015-6484MEDIUM

3S-Smart CODESYS Gateway Server before 2.3.9.48 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted (1) GET or (2) POST request.

Oct 25, 2015
5.0
CVE-2015-6482MEDIUM

Runtime Toolkit before 2.4.7.48 in 3S-Smart CODESYS before 2.3.9.48 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted request.

Oct 18, 2015
5.0
CVE-2011-5009MEDIUM

The CmpWebServer.dll module in the Control service in 3S CoDeSys 3.4 SP4 Patch 2 allows remote attackers to cause a denial of service (NULL pointer dereference) via (1) a crafted Content-Length in an HTTP POST or (2) an invalid HTTP request method.

Dec 25, 2011
5.0
CVE-2023-1620MEDIUM

Multiple WAGO devices in multiple versions may allow an authenticated remote attacker with high privileges to DoS the device by sending a specifically crafted packet to the CODESYS V2 runtime.

Jun 26, 2023
4.9
CVE-2022-22508MEDIUM

Improper Input Validation vulnerability in multiple CODESYS V3 products allows an authenticated remote attacker to block consecutive logins of a specific type.

May 15, 2023
4.3
CVE ID ⇅Severity ↓CVSS ⇅DescriptionPublished ⇅
CVE-2025-0694MEDIUM
6.6
Insufficient path validation in CODESYS Control allows low privileged attackers with physical access…Mar 18, 2025›
CVE-2023-37559MEDIUM
6.5
After successful authentication as a user in multiple Codesys products in multiple versions, specifi…Aug 3, 2023›
CVE-2023-37558MEDIUM
6.5
After successful authentication as a user in multiple Codesys products in multiple versions, specifi…Aug 3, 2023›
CVE-2023-37557MEDIUM
6.5
After successful authentication as a user in multiple Codesys products in multiple versions, specifi…Aug 3, 2023›
CVE-2023-37556MEDIUM
6.5
In multiple versions of multiple Codesys products, after successful authentication as a user, specif…Aug 3, 2023›
CVE-2023-37555MEDIUM
6.5
In multiple versions of multiple Codesys products, after successful authentication as a user, specif…Aug 3, 2023›
CVE-2023-37554MEDIUM
6.5
In multiple versions of multiple Codesys products, after successful authentication as a user, specif…Aug 3, 2023›
CVE-2023-37553MEDIUM
6.5
In multiple versions of multiple Codesys products, after successful authentication as a user, specif…Aug 3, 2023›
CVE-2023-37552MEDIUM
6.5
In multiple versions of multiple Codesys products, after successful authentication as a user, specif…Aug 3, 2023›
CVE-2023-37551MEDIUM
6.5
In multiple Codesys products in multiple versions, after successful authentication as a user, specia…Aug 3, 2023›
CVE-2023-37550MEDIUM
6.5
In multiple Codesys products in multiple versions, after successful authentication as a user, specif…Aug 3, 2023›
CVE-2023-37549MEDIUM
6.5
In multiple Codesys products in multiple versions, after successful authentication as a user, specif…Aug 3, 2023›
CVE-2023-37548MEDIUM
6.5
In multiple Codesys products in multiple versions, after successful authentication as a user, specif…Aug 3, 2023›
CVE-2023-37547MEDIUM
6.5
In multiple Codesys products in multiple versions, after successful authentication as a user, specif…Aug 3, 2023›
CVE-2023-37546MEDIUM
6.5
In multiple Codesys products in multiple versions, after successful authentication as a user, specif…Aug 3, 2023›
CVE-2023-37545MEDIUM
6.5
In multiple Codesys products in multiple versions, after successful authentication as a user, specif…Aug 3, 2023›
CVE-2022-47393MEDIUM
6.5
An authenticated, remote attacker may use a Improper Restriction of Operations within the Bounds of …May 15, 2023›
CVE-2022-47392MEDIUM
6.5
An authenticated, remote attacker may use a improper input validation vulnerability in the CmpApp/Cm…May 15, 2023›
CVE-2022-47378MEDIUM
6.5
Multiple CODESYS products in multiple versions are prone to a improper input validation vulnerabilit…May 15, 2023›
CVE-2022-32141MEDIUM
6.5
Multiple CODESYS Products are prone to a buffer over read. A low privileged remote attacker may craf…Jun 24, 2022›
CVE-2022-32140MEDIUM
6.5
Multiple CODESYS products are affected to a buffer overflow.A low privileged remote attacker may cra…Jun 24, 2022›
CVE-2022-32139MEDIUM
6.5
In multiple CODESYS products, a low privileged remote attacker may craft a request, which cause an o…Jun 24, 2022›
CVE-2022-32136MEDIUM
6.5
In multiple CODESYS products, a low privileged remote attacker may craft a request that cause a read…Jun 24, 2022›
CVE-2022-22513MEDIUM
6.5
An authenticated remote attacker can cause a null pointer dereference in the CmpSettings component o…Apr 7, 2022›
CVE-2021-34596MEDIUM
6.5
A crafted request may cause a read access to an uninitialized pointer in CODESYS V2 Runtime Toolkit …Oct 26, 2021›
CVE-2020-12068MEDIUM
6.5
An issue was discovered in CODESYS Development System before 3.5.16.0. CODESYS WebVisu and CODESYS R…May 14, 2020›
CVE-2020-7052MEDIUM
6.5
CODESYS Control V3, Gateway V3, and HMI V3 before 3.5.15.30 allow uncontrolled memory allocation whi…Jan 24, 2020›
CVE-2019-19789MEDIUM
6.5
3S-Smart CODESYS SP Realtime NT before V2.3.7.28, CODESYS Runtime Toolkit 32 bit full before V2.4.7.…Dec 20, 2019›
CVE-2019-13542MEDIUM
6.5
3S-Smart Software Solutions GmbH CODESYS V3 OPC UA Server, all versions 3.5.11.0 to 3.5.15.0, allows…Sep 17, 2019›
CVE-2011-5058MEDIUM
6.4
The CmbWebserver.dll module of the Control service in 3S CoDeSys 3.4 SP4 Patch 2 allows remote attac…Jan 10, 2012›
CVE-2025-41739MEDIUM
5.9
An unauthenticated remote attacker, who beats a race condition, can exploit a flaw in the communicat…Dec 1, 2025›
CVE-2025-41658MEDIUM
5.5
CODESYS Runtime Toolkit-based products may expose sensitive files to local low-privileged operating …Aug 4, 2025›
CVE-2022-1794MEDIUM
5.5
The CODESYS OPC DA Server prior V3.5.18.20 stores PLC passwords as plain text in its configuration f…Jul 11, 2022›
CVE-2019-5106MEDIUM
5.5
A hard-coded encryption key vulnerability exists in the authentication functionality of WAGO e!Cockp…Mar 11, 2020›
CVE-2025-2595MEDIUM
5.3
An unauthenticated remote attacker can bypass the user management in CODESYS Visualization and read …Apr 23, 2025›
CVE-2019-9011MEDIUM
5.3
In Pilz PMC programming tool 3.x before 3.5.17 (based on CODESYS Development System), an attacker ca…Dec 26, 2022›
CVE-2022-1989MEDIUM
5.3
All CODESYS Visualization versions before V4.2.0.0 generate a login dialog vulnerable to information…Aug 23, 2022›
CVE-2022-31803MEDIUM
5.3
In CODESYS Gateway Server V2 an insufficient check for the activity of TCP client connections allows…Jun 24, 2022›
CVE-2021-30187MEDIUM
5.3
CODESYS V2 runtime system SP before 2.4.7.55 has Improper Neutralization of Special Elements used in…May 25, 2021›
CVE-2018-8836MEDIUM
5.3
Wago 750 Series PLCs with firmware version 10 and prior include a remote attack may take advantage o…Apr 3, 2018›
CVE-2015-6484MEDIUM
5.0
3S-Smart CODESYS Gateway Server before 2.3.9.48 allows remote attackers to cause a denial of service…Oct 25, 2015›
CVE-2015-6482MEDIUM
5.0
Runtime Toolkit before 2.4.7.48 in 3S-Smart CODESYS before 2.3.9.48 allows remote attackers to cause…Oct 18, 2015›
CVE-2011-5009MEDIUM
5.0
The CmpWebServer.dll module in the Control service in 3S CoDeSys 3.4 SP4 Patch 2 allows remote attac…Dec 25, 2011›
CVE-2023-1620MEDIUM
4.9
Multiple WAGO devices in multiple versions may allow an authenticated remote attacker with high priv…Jun 26, 2023›
CVE-2022-22508MEDIUM
4.3
Improper Input Validation vulnerability in multiple CODESYS V3 products allows an authenticated remo…May 15, 2023›