CVE-2018-20025

mediumpriority · track · 31OT risk · elevatedEPSS 0.026 · 85 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.56% (85th) EPSS

CVSS 5 · medium

Is it mine?

34 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cisa_csaf_ot · festo_psirt

EPSS · scored 2026-10-27

Use of Insufficiently Random Values exists in CODESYS V3 products versions prior V3.5.14.0.

remediations

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

A vendor fix is available.

Fixedfesto_psirt
For CVE-2010-5250, CVE-2017-3735, CVE-2018-0739, CVE-2018-10612, CVE-2018-20025, CVE-2018-20026, CVE-2019-13532, CVE-2019-13542, CVE-2019-13548, CVE-2019-18858, CVE-2019-9008, CVE-2019-9009, CVE-2019-9010, CVE-2019-9012, CVE-2020-7052: Update to version 2.4.2.0. This also fixes CODESYS Advisory 2017-01, CODESYS Advisory 2017-03, CODESYS Advisory 2017-06, CODESYS Advisory 2017-07, CODESYS Advisory 2017-09, CODESYS Advisory 2018-04, CODESYS Advisory 2018-05, CODESYS Advisory 2018-07, CODESYS Advisory 2018-11.
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.
MitigationCODESYS V3 productscisa_csaf_ot
Activate and apply user management and password features
MitigationFesto Firmware (R05 (17.06.2016) = 2.3.8.0) installed on Festo Hardware Controller CECC-D (All versions)cisa_csaf_ot
(CVE-2018-20026, CVE-2019-9010¸ CVE-2010-5250, CVE-2019-9008, CVE-2019-18858, CVE-2019-13548, CVE-2019-13542, CVE-2019-9009, CVE-2019-9012, CVE-2020-7052, CVE-2019-13532, CVE-2018-20025, CVE-2018-10612, CVE-2017-3735) (Product Group: Festo Firmware (R05 (17.06.2016) = 2.3.8.0) installed on Festo Hardware Controller CECC-D(All versions), Festo Firmware (R06 (11.10.2016) = 2.3.8.1) installed on Festo Hardware Controller CECC-LK(All versions), Festo Firmware (R05 (17.06.2016) = 2.3.8.0) installed on Festo Hardware Controller CECC-S(All versions)): Update to version 2.4.2.0. This also fixes CODESYS Advisory 2017-01, CODESYS Advisory 2017-03, CODESYS Advisory 2017-06, CODESYS Advisory 2017-07, CODESYS Advisory 2017-09, CODESYS Advisory 2018-04, CODESYS Advisory 2018-05, CODESYS Advisory 2018-07, CODESYS Advisory 2018-11.
MitigationFesto Firmware (R05 (17.06.2016) = 2.3.8.0) installed on Festo Hardware Controller CECC-S (All versions)cisa_csaf_ot
(CVE-2018-20026, CVE-2019-9010¸ CVE-2010-5250, CVE-2019-9008, CVE-2019-18858, CVE-2019-13548, CVE-2019-13542, CVE-2019-9009, CVE-2019-9012, CVE-2020-7052, CVE-2019-13532, CVE-2018-20025, CVE-2018-10612, CVE-2017-3735) (Product Group: Festo Firmware (R05 (17.06.2016) = 2.3.8.0) installed on Festo Hardware Controller CECC-D(All versions), Festo Firmware (R06 (11.10.2016) = 2.3.8.1) installed on Festo Hardware Controller CECC-LK(All versions), Festo Firmware (R05 (17.06.2016) = 2.3.8.0) installed on Festo Hardware Controller CECC-S(All versions)): Update to version 2.4.2.0. This also fixes CODESYS Advisory 2017-01, CODESYS Advisory 2017-03, CODESYS Advisory 2017-06, CODESYS Advisory 2017-07, CODESYS Advisory 2017-09, CODESYS Advisory 2018-04, CODESYS Advisory 2018-05, CODESYS Advisory 2018-07, CODESYS Advisory 2018-11.
MitigationFesto Firmware (R06 (11.10.2016) = 2.3.8.1) installed on Festo Hardware Controller CECC-LK (All versions)cisa_csaf_ot
(CVE-2018-20026, CVE-2019-9010¸ CVE-2010-5250, CVE-2019-9008, CVE-2019-18858, CVE-2019-13548, CVE-2019-13542, CVE-2019-9009, CVE-2019-9012, CVE-2020-7052, CVE-2019-13532, CVE-2018-20025, CVE-2018-10612, CVE-2017-3735) (Product Group: Festo Firmware (R05 (17.06.2016) = 2.3.8.0) installed on Festo Hardware Controller CECC-D(All versions), Festo Firmware (R06 (11.10.2016) = 2.3.8.1) installed on Festo Hardware Controller CECC-LK(All versions), Festo Firmware (R05 (17.06.2016) = 2.3.8.0) installed on Festo Hardware Controller CECC-S(All versions)): Update to version 2.4.2.0. This also fixes CODESYS Advisory 2017-01, CODESYS Advisory 2017-03, CODESYS Advisory 2017-06, CODESYS Advisory 2017-07, CODESYS Advisory 2017-09, CODESYS Advisory 2018-04, CODESYS Advisory 2018-05, CODESYS Advisory 2018-07, CODESYS Advisory 2018-11.
MitigationFesto Firmware (R06 (11.10.2016) = 2.3.8.1) installed on Festo Hardware Controller CECC-S (All versions)cisa_csaf_ot
(CVE-2018-20026, CVE-2019-9010¸ CVE-2010-5250, CVE-2019-9008, CVE-2019-18858, CVE-2019-13548, CVE-2019-13542, CVE-2019-9009, CVE-2019-9012, CVE-2020-7052, CVE-2019-13532, CVE-2018-20025, CVE-2018-10612, CVE-2017-3735) (Product Group: Festo Firmware (R05 (17.06.2016) = 2.3.8.0) installed on Festo Hardware Controller CECC-D(All versions), Festo Firmware (R06 (11.10.2016) = 2.3.8.1) installed on Festo Hardware Controller CECC-LK(All versions), Festo Firmware (R05 (17.06.2016) = 2.3.8.0) installed on Festo Hardware Controller CECC-S(All versions)): Update to version 2.4.2.0. This also fixes CODESYS Advisory 2017-01, CODESYS Advisory 2017-03, CODESYS Advisory 2017-06, CODESYS Advisory 2017-07, CODESYS Advisory 2017-09, CODESYS Advisory 2018-04, CODESYS Advisory 2018-05, CODESYS Advisory 2018-07, CODESYS Advisory 2018-11.
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.

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 · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · CISA US

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · Festo PSIRT DE

v3.06.9mediumCVSS:3.0/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 · CISA US

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · Festo PSIRT DE

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-330USprimaryCWE-330USCWE-330US

affected products (34)

Products and version ranges known to be affected.

CODESYS Development System 3.5.21.20 external component of Festo Automation Suite 2.8.0.138all versionsfixedcisa_csaf_otUScpe:2.3:a:codesys:development_system:3.5.21.20*:*:*:*:*:*:*:*
Festo Automation Suite <2.8.0.138 installed with CODESYS Development System 3.0all versionscisa_csaf_otUScpe:2.3:a:codesys:development_system:3.0:*:*:*:*:*:*:*
Festo Automation Suite <2.8.0.138 installed with CODESYS Development System 3.5.16.10all versionscisa_csaf_otUScpe:2.3:a:codesys:development_system:3.5.16.10:*:*:*:*:*:*:*
Festo Festo Firmware (R05 (17.06.2016) = 2.3.8.0) installed on Festo Hardware Controller CECC-D (All versions)≤ vers:all/*cisa_csaf_otUS
Festo Festo Firmware (R05 (17.06.2016) = 2.3.8.0) installed on Festo Hardware Controller CECC-S (All versions)≤ vers:all/*cisa_csaf_otUS
Festo Festo Firmware (R06 (11.10.2016) = 2.3.8.1) installed on Festo Hardware Controller CECC-LK (All versions)≤ vers:all/*cisa_csaf_otUS
Festo Festo Firmware (R06 (11.10.2016) = 2.3.8.1) installed on Festo Hardware Controller CECC-S (All versions)≤ vers:all/*cisa_csaf_otUS
Kaspersky Lab CODESYS V3 products≤ prior V3.5.14.0enisa_euvdEU
CODESYS Development System 3.5.21.20 external component of Festo Automation Suite 2.8.0.138all versionsfixedfesto_psirtDEcpe:2.3:a:codesys:development_system:3.5.21.20*:*:*:*:*:*:*:*
Festo Automation Suite <2.8.0.138 installed with CODESYS Development System 3.0all versionsfesto_psirtDEcpe:2.3:a:codesys:development_system:3.0:*:*:*:*:*:*:*
Festo Automation Suite <2.8.0.138 installed with CODESYS Development System 3.5.16.10all versionsfesto_psirtDEcpe:2.3:a:codesys:development_system:3.5.16.10:*:*:*:*:*:*:*
Firmware 2.3.8.0 installed on Controller CECC-Dall versionsfesto_psirtDE
Firmware 2.3.8.0 installed on Controller CECC-LKall versionsfesto_psirtDE
Firmware 2.3.8.0 installed on Controller CECC-Sall versionsfesto_psirtDE
Firmware 2.3.8.1 installed on Controller CECC-Dall versionsfesto_psirtDE
Firmware 2.3.8.1 installed on Controller CECC-LKall versionsfesto_psirtDE
Firmware 2.3.8.1 installed on Controller CECC-Sall versionsfesto_psirtDE
Firmware 2.4.2.0 installed on Controller CECC-Dall versionsfixedfesto_psirtDE
Firmware 2.4.2.0 installed on Controller CECC-LKall versionsfixedfesto_psirtDE
codesys control for beaglebone sl3.0 → 3.5.14.0nvdUScpe:2.3:a:codesys:control_for_beaglebone_sl:*:*:*:*:*:*:*:*

showing 20 of 34

advisories (5)

Vendor and ecosystem advisories describing this.

FSA-202202Festo: Controller CECC-S,LK,D family <= 2.3.8.1 - multiple vulnerabilities in CODESYS V3 runtime system2022-07-18csaf · festo_psirtDE
The Festo controller CECC product family is affected by multiple vulnerabilities in the CODESYS V3 runtime.
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.
ICSA-18-352-043S-Smart Software Solutions GmbH CODESYS V3 Products2018-12-18icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow a remote attacker to disguise the source of malicious communication packets and also exploit a random values weakness affecting confidentiality and integrity of data stored on the device.
ICSA-25-273-04Festo Controller CECC-S,-LK,-D Family Firmware (Update A)2025-09-30icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to crash services, escalate privileges, bypass authentication, or gain unauthorized access to sensitive systems and data.
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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot festo_psirt nvd NVD CVE.org MITRE

published 2019-02-19modified 2026-06-17

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references (11)

External citations — patches, advisories, analysis.

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