Beckhoff Automation TcRouter.sys up to 3.1.0.2364 IOCTL privileges management
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.3 | $0-$5k | 0.00+ |
Summary
A vulnerability described as very critical has been identified in Beckhoff Automation TcRouter.sys up to 3.1.0.2364. The impacted element is an unknown function of the file TcRouter.sys of the component IOCTL Handler. Executing a manipulation can lead to privileges management. This vulnerability is handled as CVE-2026-18769. It is possible to launch the attack on the local host. There is not any exploit available.
Details
A vulnerability was found in Beckhoff Automation TcRouter.sys up to 3.1.0.2364. It has been declared as very critical. This vulnerability affects an unknown code block of the file TcRouter.sys of the component IOCTL Handler. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
A local low privileged attacker can move arbitrary physical memory content via TcRouter.sys because of exposed IOCTL function calls resulting in a full compromise of the affected devices.
The advisory is available at certvde.com. This vulnerability was named CVE-2026-18769 since 08/04/2026. The exploitation appears to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 11/11/2026). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 8.3VulDB Meta Temp Score: 8.3
VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 7.8
CNA Vector (CERTVDE): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Privileges managementCWE: CWE-269 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: No
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
08/04/2026 CVE reserved11/11/2026 Advisory disclosed
11/11/2026 VulDB entry created
11/11/2026 VulDB entry last update
Sources
Advisory: certvde.comStatus: Not defined
CNA: CERTVDE
CVE: CVE-2026-18769 (🔒)
GCVE (CVE): GCVE-0-2026-18769
GCVE (VulDB): GCVE-100-435706
Entry
Created: 11/11/2026 09:38Changes: 11/11/2026 09:38 (75)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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