CVE-2025-1468

highpriority · track · 0EPSS 0.006 · 50 %ileDEEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.64% (50th) EPSS
CVSS 7.5 · high
Is it mine?
57 products
Check your exposure
Who says so?
7 sources
cnnvd · enisa_euvd · cert_bund · cisa_csaf_ot

EPSS · scored 2026-10-22

An unauthenticated remote attacker can gain access to sensitive information including authentication information when using CODESYS OPC UA Server with the non-default Basic128Rsa15 security policy.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • FixedCODESYS Runtime Toolkitcodesys_psirt

    Update the following product to version 3.5.21.0 and follow the updated documentation: * CODESYS Runtime Toolkit This update has no direct functional impact, but the improved documentation strongly discourages the CODESYS Runtime Toolkit setting 'CMPOPCUASTACK_ALLOW_SHA1_BASED_SECURITY'. If set, device manufactures need to remove the compiler #define "CMPOPCUASTACK_ALLOW_SHA1_BASED_SECURITY" from the build configuration of the CODESYS Runtime toolkit to remediate the vulnerability. This restores the default configuration and disables the affected OPC UA security policy Basic128Rsa15. Note: This prevents clients that only support the Basic128Rsa15 policy from connecting to the CODESYS UPC UA server. Device manufacturers find further information on obtaining the software update in the CODESYS Update area https://www.codesys.com/download.

  • Fixedwago_psirt

    Update to Firmware version 04.08.01 (FW30), 01.05.01 (FW05), 03.10.11 (FW22 Patch 2). For the latest Custom Firmware please contact the WAGO support.

  • MitigationCODESYS Runtime Toolkitcodesys_psirt

    If set, device manufactures need to remove the compiler #define "CMPOPCUASTACK_ALLOW_SHA1_BASED_SECURITY" from the build configuration of the CODESYS Runtime toolkit to restore the default value, which disables the affected OPC UA security policy Basic128Rsa15. Note: This prevents clients that only support the Basic128Rsa15 policy from connecting to the CODESYS UPC UA server.

  • MitigationFesto Automation Suite <2.8.0.138 installed with CODESYS Development System 3.0festo_psirt

    Starting from Festo Automation Suite version 2.8.0.138, Codesys is no longer bundled with the suite and must be downloaded and installed separately by the customer. To mitigate this vulnerability customers are advised to: Download the latest, patched version of Codesys directly from the official Codesys website. Follow the installation and update instructions provided by Codesys to ensure all security fixes are applied. Regularly monitor Codesys security advisories and apply updates promptly. Maintain the Festo Automation Suite connector up to date by installing FAS updates as released by Festo.

  • MitigationFesto Automation Suite <2.8.0.138 installed with CODESYS Development System 3.5.16.10festo_psirt

    Starting from Festo Automation Suite version 2.8.0.138, Codesys is no longer bundled with the suite and must be downloaded and installed separately by the customer. To mitigate this vulnerability customers are advised to: Download the latest, patched version of Codesys directly from the official Codesys website. Follow the installation and update instructions provided by Codesys to ensure all security fixes are applied. Regularly monitor Codesys security advisories and apply updates promptly. Maintain the Festo Automation Suite connector up to date by installing FAS updates as released by Festo.

  • MitigationFesto Automation Suite <2.8.0.138 installed with CODESYS Development System 3.0cisa_csaf_ot

    Starting from Festo Automation Suite version 2.8.0.138, Codesys is no longer bundled with the suite and must be downloaded and installed separately by the customer. To mitigate this vulnerability customers are advised to: Download the latest, patched version of Codesys directly from the official Codesys website. Follow the installation and update instructions provided by Codesys to ensure all security fixes are applied. Regularly monitor Codesys security advisories and apply updates promptly. Maintain the Festo Automation Suite connector up to date by installing FAS updates as released by Festo.

  • MitigationFesto Automation Suite <2.8.0.138 installed with CODESYS Development System 3.5.16.10cisa_csaf_ot

    Starting from Festo Automation Suite version 2.8.0.138, Codesys is no longer bundled with the suite and must be downloaded and installed separately by the customer. To mitigate this vulnerability customers are advised to: Download the latest, patched version of Codesys directly from the official Codesys website. Follow the installation and update instructions provided by Codesys to ensure all security fixes are applied. Regularly monitor Codesys security advisories and apply updates promptly. Maintain the Festo Automation Suite connector up to date by installing FAS updates as released by Festo.

02

cvss

Technical severity, 0–10. One row per scoring source.

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · CISA US
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · info@cert.vde.comexploitability 3.9 · impact 3.6
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · WAGO PSIRT DE
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · Festo PSIRT DE
v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · CODESYS PSIRT
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-203USCWE-203USCWE-203USCWE-203USCWE-203US
05

affected products (57)

Products and version ranges known to be affected.

showing 20 of 57
06

advisories (5)

Vendor and ecosystem advisories describing this.

  • Advisory2025-04_VDE-2025-022CODESYS Control V3 - OPC UA Server Authentication bypass2025-03-18csaf · codesys_psirtDE

    The OPC UA security policy Basic128Rsa15 is vulnerable against attacks on the private key. This can lead to loss of confidentiality or authentication bypass. The CODESYS OPC UA server is not affected in the default configuration. However, the affected policy may be enabled by a customer configuration.

  • FSA-202601Several CODESYS vulnerabilities in Festo Automation Suite2026-02-26csaf · festo_psirtDE

    Starting with Festo Automation Suite (FAS) version 2.8.0.138, the suite is delivered only with a connector to Codesys, rather than including Codesys directly. Prior to this version, Codesys was bundled within the FAS installation. From version 2.8.0.138 onwards, customers are required to download and install Codesys independently. This change impacts the handling of security vulnerabilities (CVEs) related to Codesys. Any Codesys-related security issues must now be addressed by the customer through their separate Codesys installation. The FAS itself includes only the connector component, which is maintained and updated within the suite. Please ensure that Codesys is kept up to date independently to mitigate any potential security risks associated with the Codesys software.

  • VDE-2025-062WAGO: Multiple Vulnerabilities in CODESYS components2025-11-03csaf · wago_psirtDE

    Several WAGO firmwares installed on different devices are impacted by various CODESYS vulnerabilities. These affect the runtime, visualization, and OPC UA server.

  • WID-SEC-W-2025-0581CODESYS Runtime Toolkit: Schwachstelle ermöglicht Umgehen von SicherheitsvorkehrungenDeutsch2025-03-17csaf · cert_bundDE

    Ein entfernter anonymer Angreifer kann eine Schwachstelle in CODESYS ausnutzen, um Sicherheitsmaßnahmen zu umgehen und vertrauliche Informationen preiszugeben.

  • ICSA-26-076-01CODESYS in Festo Automation Suite2026-02-26icsa · cisa_csaf_otUS

    Starting with Festo Automation Suite (FAS) version 2.8.0.138, the suite is delivered only with a connector to Codesys, rather than including Codesys directly. Prior to this version, Codesys was bundled within the FAS installation. From version 2.8.0.138 onwards, customers are required to download and install Codesys independently. This change impacts the handling of security vulnerabilities (CVEs) related to Codesys. Any Codesys-related security issues must now be addressed by the customer through their separate Codesys installation. The FAS itself includes only the connector component, which is maintained and updated within the suite. Please ensure that Codesys is kept up to date independently to mitigate any potential security risks associated with the Codesys software.

07

also known as (3)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcert_bundcisa_csaf_otcodesys_psirtfesto_psirtwago_psirtNVDCVE.orgMITRE
published 2025-03-18modified 2026-06-17
09

references (5)

External citations — patches, advisories, analysis.

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