Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
21 results
Jan 20, 2026An high privileged remote attacker can inject arbitrary content into the custom CSS field on the affected devices due to improper neutralization of input duringCVE-2025-41768 · Other software · Beckhoff Automation · reported by info@cert.vde.comMedium 5.5
An high privileged remote attacker can inject arbitrary content into the custom CSS field on the affected devices due to improper neutralization of input during web page generation ('Cross-site Scripting').
- Product
- TwinCAT.HMI.Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 9, 2025An unauthenticated attacker can trick a local user into executing arbitrary commands by opening a deliberately manipulated project file with an affected engineeCVE-2025-41701 · Other software · Beckhoff · reported by info@cert.vde.comHigh 7.8
An unauthenticated attacker can trick a local user into executing arbitrary commands by opening a deliberately manipulated project file with an affected engineering tool. These arbitrary commands are executed in the user context.
- Product
- TE1000 | TwinCAT 3 Enineering
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 31, 2024A local user with administrative access rights can enter specialy crafted values for settings at the user interface (UI) of the TwinCAT Package Manager which thCVE-2024-8934 · Other software · Beckhoff · reported by info@cert.vde.comMedium 6.5
A local user with administrative access rights can enter specialy crafted values for settings at the user interface (UI) of the TwinCAT Package Manager which then causes arbitrary OS commands to be executed.
- Product
- TwinCAT Package Manager
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 27, 2024The MPD package included in TwinCAT/BSD allows an authenticated, low-privileged local attacker to induce a Denial-of-Service (DoS) condition on the daemon and eCVE-2024-41176 · Other software · Beckhoff · reported by info@cert.vde.comHigh 7.3
The MPD package included in TwinCAT/BSD allows an authenticated, low-privileged local attacker to induce a Denial-of-Service (DoS) condition on the daemon and execute code in the context of user “root” via a crafted HTTP request.
- Product
- MDP package
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 27, 2024The IPC-Diagnostics package included in TwinCAT/BSD is vulnerable to a local denial-of-service attack by a low privileged attacker.CVE-2024-41175 · Other software · Beckhoff · reported by info@cert.vde.comMedium 5.5
The IPC-Diagnostics package included in TwinCAT/BSD is vulnerable to a local denial-of-service attack by a low privileged attacker.
- Product
- IPC Diagnostics package
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcert.vde.cominfosys.beckhoff.com
Aug 27, 2024The IPC-Diagnostics package in TwinCAT/BSD is susceptible to improper input neutralization by a low-privileged local attacker.CVE-2024-41174 · Other software · Beckhoff · reported by info@cert.vde.comHigh 7.3
The IPC-Diagnostics package in TwinCAT/BSD is susceptible to improper input neutralization by a low-privileged local attacker.
- Product
- IPC Diagnostics package
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 27, 2024The IPC-Diagnostics package included in TwinCAT/BSD is vulnerable to a local authentication bypass by a low privileged attacker.CVE-2024-41173 · Other software · Beckhoff · reported by info@cert.vde.comHigh 7.8
The IPC-Diagnostics package included in TwinCAT/BSD is vulnerable to a local authentication bypass by a low privileged attacker.
- Product
- IPC Diagnostics package
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 14, 2023The package authelia-bhf included in Beckhoffs TwinCAT/BSD is prone to an open redirect that allows a remote unprivileged attacker to redirect a user to anotherCVE-2023-6545 · Other software · Beckhoff · reported by info@cert.vde.comMedium 4.7
The package authelia-bhf included in Beckhoffs TwinCAT/BSD is prone to an open redirect that allows a remote unprivileged attacker to redirect a user to another site. This may have limited impact to integrity and does solely affect anthelia-bhf the Beckhoff fork of authelia.
- Product
- authelia-bhf of TwinCAT/BSD
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcert.vde.comdownload.beckhoff.com
Nov 4, 2021TwinCAT OPC UA Server in TF6100 and TS6100 in product versions before 4.3.48.0 or with TcOpcUaServer versions below 3.2.0.194 are prone to a relative path traveCVE-2021-34594 · Other software · Beckhoff Automation · reported by info@cert.vde.comMedium 6.5
TwinCAT OPC UA Server in TF6100 and TS6100 in product versions before 4.3.48.0 or with TcOpcUaServer versions below 3.2.0.194 are prone to a relative path traversal that allow administrators to create or delete any files on the system.
- Product
- TwinCAT OPC UA Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcert.vde.comcert.vde.com
May 13, 2021TwinCAT OPC UA Server in versions up to 2.3.0.12 and IPC Diagnostics UA Server in versions up to 3.1.0.1 from Beckhoff Automation GmbH & Co.CVE-2020-12526 · Other software · Beckhoff · reported by info@cert.vde.comMedium 5.3
TwinCAT OPC UA Server in versions up to 2.3.0.12 and IPC Diagnostics UA Server in versions up to 3.1.0.1 from Beckhoff Automation GmbH & Co. KG are vulnerable to denial of service attacks. The attacker needs to send several specifically crafted requests to the running OPC UA server. After some of these requests the OPC UA server is no longer responsive to any client. This is without effect to the real-time functionality of IPCs.
- Product
- TwinCAT OPC UA Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcert.vde.comdownload.beckhoff.com
Nov 19, 2020The default installation path of the TwinCAT XAR 3.1 software in all versions is underneath C:\TwinCAT.CVE-2020-12510 · Other software · Beckhoff · reported by info@cert.vde.comHigh 7.3
The default installation path of the TwinCAT XAR 3.1 software in all versions is underneath C:\TwinCAT. If the directory does not exist it and further subdirectories are created with permissions which allow every local user to modify the content. The default installation registers TcSysUI.exe for automatic execution upon log in of a user. If a less privileged user has a local account he or she can replace TcSysUI.exe. It will be executed automatically by another user during login. This is also true for users with administrative access. Consequently, a less privileged user can trick a higher privileged user into executing code he or she modified this way. By default Beckhoff’s IPCs are shipped with TwinCAT software installed this way and with just a single local user configured. Thus the vulnerability exists if further less privileged users have been added.
- Product
- TwinCat XAR 3.1
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcert.vde.comcert.vde.com
Jun 16, 2020Beckhoff's TwinCAT RT network driver for Intel 8254x and 8255x is providing EtherCAT functionality.CVE-2020-12494 · Other software · Beckhoff · reported by info@cert.vde.comMedium 5.3
Beckhoff's TwinCAT RT network driver for Intel 8254x and 8255x is providing EtherCAT functionality. The driver implements real-time features. Except for Ethernet frames sent from real-time functionality, all other Ethernet frames sent through the driver are not padded if their payload is less than the minimum Ethernet frame size. Instead, arbitrary memory content is transmitted within in the padding bytes of the frame. Most likely this memory contains slices from previously transmitted or received frames. By this method, memory content is disclosed, however, an attacker can hardly control which memory content is affected. For example, the disclosure can be provoked with small sized ICMP echo requests sent to the device.
- Product
- TwinCat Driver for Intel 8254x (Tcl8254x.sys)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcert.vde.comcert.vde.com
Dec 19, 2019Beckhoff Embedded Windows PLCs through 3.1.4024.0, and Beckhoff Twincat on Windows Engineering stations, allow an attacker to achieve Remote Code Execution (as CVE-2019-16871 · Other software · Beckhoff · reported by MITRECritical 9.8
Beckhoff Embedded Windows PLCs through 3.1.4024.0, and Beckhoff Twincat on Windows Engineering stations, allow an attacker to achieve Remote Code Execution (as SYSTEM) via the Beckhoff ADS protocol.
- Product
- Twincat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddownload.beckhoff.comic4.be
Nov 21, 2019When Beckhoff TwinCAT is configured to use the Profinet driver, a denial of service of the controller could be reached by sending a malformed UDP packet to the CVE-2019-5637 · Other software · Beckhoff · reported by cve@rapid7.comHigh 7.5
When Beckhoff TwinCAT is configured to use the Profinet driver, a denial of service of the controller could be reached by sending a malformed UDP packet to the device. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior).
- Product
- TwinCAT 2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordblog.rapid7.comdownload.beckhoff.com
Nov 21, 2019When a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down.CVE-2019-5636 · Other software · Beckhoff · reported by cve@rapid7.comMedium 5.3
When a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down. Note that the TwinCAT devices are still performing as normal. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior).
- Product
- TwinCAT 2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordblog.rapid7.comdownload.beckhoff.com
Jun 27, 2018Beckhoff TwinCAT supports communication over ADS.CVE-2017-16726 · Other software · ICS-CERT · reported by ics-cert@hq.dhs.govCritical 9.1
Beckhoff TwinCAT supports communication over ADS. ADS is a protocol for industrial automation in protected environments. ADS has not been designed to achieve security purposes and therefore does not include any encryption algorithms because of their negative effect on performance and throughput. An attacker can forge arbitrary ADS packets when legitimate ADS traffic is observable.
- Product
- Beckhoff TwinCAT
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddownload.beckhoff.comdownload.beckhoff.com
Jun 27, 2018Beckhoff TwinCAT 3 supports communication over ADS.CVE-2017-16718 · Other software · ICS-CERT · reported by ics-cert@hq.dhs.govMedium 5.9
Beckhoff TwinCAT 3 supports communication over ADS. ADS is a protocol for industrial automation in protected environments. This protocol uses user configured routes, that can be edited remotely via ADS. This special command supports encrypted authentication with username/password. The encryption uses a fixed key, that could be extracted by an attacker. Precondition of the exploitation of this weakness is network access at the moment a route is added.
- Product
- Beckhoff TwinCAT
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddownload.beckhoff.comdownload.beckhoff.com
Mar 23, 2018Kernel drivers in Beckhoff TwinCAT 3.1 Build 4022.4, TwinCAT 2.11 R3 2259, and TwinCAT 3.1 lack proper validation of user-supplied pointer values.CVE-2018-7502 · Other software · ICS-CERT · reported by ics-cert@hq.dhs.govHigh 7.8
Kernel drivers in Beckhoff TwinCAT 3.1 Build 4022.4, TwinCAT 2.11 R3 2259, and TwinCAT 3.1 lack proper validation of user-supplied pointer values. An attacker who is able to execute code on the target may be able to exploit this vulnerability to obtain SYSTEM privileges.
- Product
- Beckhoff TwinCAT PLC products
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecurityfocus.comdownload.beckhoff.com
Oct 5, 2016Beckhoff Embedded PC images before 2014-10-22 and Automation Device Specification (ADS) TwinCAT components might allow remote attackers to obtain access via theCVE-2014-5415 · Other software · Beckhoff · reported by ics-cert@hq.dhs.govCritical 9.1
Beckhoff Embedded PC images before 2014-10-22 and Automation Device Specification (ADS) TwinCAT components might allow remote attackers to obtain access via the (1) Windows CE Remote Configuration Tool, (2) CE Remote Display service, or (3) TELNET service.
- Product
- Embedded PC Images
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecurityfocus.comdownload.beckhoff.com
Oct 5, 2016Beckhoff Embedded PC images before 2014-10-22 and Automation Device Specification (ADS) TwinCAT components do not restrict the number of authentication attemptsCVE-2014-5414 · Other software · Beckhoff · reported by ics-cert@hq.dhs.govCritical 9.1
Beckhoff Embedded PC images before 2014-10-22 and Automation Device Specification (ADS) TwinCAT components do not restrict the number of authentication attempts, which makes it easier for remote attackers to obtain access via a brute-force attack.
- Product
- Embedded PC Images
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecurityfocus.comdownload.beckhoff.com
Sep 16, 2011Beckhoff TwinCAT 2.11.0.2004 and earlier allows remote attackers to cause a denial of service via a crafted request to UDP port 48899, which triggers an out-of-CVE-2011-3486 · Other software · Beckhoff · reported by MITREMedium 5
Beckhoff TwinCAT 2.11.0.2004 and earlier allows remote attackers to cause a denial of service via a crafted request to UDP port 48899, which triggers an out-of-bounds read.
- Product
- Twincat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordaluigi.altervista.orgosvdb.org
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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