Beckhoff Automation TcRouter.sys up to 3.1.0.2364 Ioctl privileges management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.1$0-$5k0.00+

Summaryinfo

A vulnerability labeled as very critical has been found in Beckhoff Automation TcRouter.sys up to 3.1.0.2364. Impacted is an unknown function of the file TcRouter.sys of the component Ioctl. Such manipulation leads to privileges management. This vulnerability is traded as CVE-2026-18768. An attack has to be approached locally. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Beckhoff Automation TcRouter.sys up to 3.1.0.2364 and classified as very critical. Affected by this issue is an unknown part of the file TcRouter.sys of the component Ioctl. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A local low privileged attacker can access arbitrary physical memory or define its mapping via TcRouter.sys because of exposed IOCTL function calls resulting in a full compromise of the affected devices.

The advisory is shared for download at certvde.com. This vulnerability is handled as CVE-2026-18768 since 08/04/2026. The exploitation is known to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/11/2026). The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 3.1.0.2365 or 3.18.1 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.1

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (CERTVDE): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: TcRouter.sys 3.1.0.2365/3.18.1

Timelineinfo

08/04/2026 CVE reserved
11/11/2026 +99 days Advisory disclosed
11/11/2026 +0 days VulDB entry created
11/11/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: certvde.com
Status: Confirmed

CNA: CERTVDE
CVE: CVE-2026-18768 (🔒)

GCVE (CVE): GCVE-0-2026-18768
GCVE (VulDB): GCVE-100-435704

Entryinfo

Created: 11/11/2026 09:36
Changes: 11/11/2026 09:36 (77)
Complete: 🔍
Cache ID: 216::103

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