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CVE-2026-22908: Sick Tdc-X401gl Firmware Security Vulnerability (CVSS 9.1)

CVE-2026-22908 is a critical severity security vulnerability in Sick Tdc-X401gl Firmware with a CVSS score of 9.1. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Last updated: Jun 17, 2026

Quick answer

Direct answer

CVE-2026-22908 is a critical severity security vulnerability in Sick Tdc-X401gl Firmware with a CVSS score of 9.1. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Risk scores

CVSS base score
9.1CRITICAL
EPSS probability
0.59%
Higher than 47 percent of all CVEs
CISA KEV
Not listed
CVSS metricWhat it means
Attack vector (AV:N)Network: reachable remotely
Attack complexity (AC:L)Low complexity
Privileges required (PR:H)High privileges required
User interaction (UI:N)No user interaction
Scope (S:C)Scope changed: impact spreads beyond the component
Confidentiality (C:H)High confidentiality impact
Integrity (I:H)High integrity impact
Availability (A:H)High availability impact

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

About Sick Tdc-X401gl Firmware

CVE-2026-22908 affects Sick Tdc-X401gl Firmware, a product from Sick. Before acting, confirm where Sick Tdc-X401gl Firmware runs in your estate, who owns it and whether it is reachable from the internet, because exposure decides real risk more than the score alone.

What the flaw is

In plain terms: Uploading unvalidated container images may allow remote attackers to gain full access to the system, potentially compromising its integrity and confidentiality.

Based on its CVSS vector, the flaw can be reached over the network, needs some level of access, and needs no user interaction. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Affected versions and timeline

FieldDetail
ProductSick Tdc-X401gl Firmware
Affected versionsTdc-X401gl Firmware before 1.4.0
PublishedJan 15, 2026
Last modifiedJun 17, 2026
Added to CISA KEVNot listed
Assigning CNApsirt@sick.de

How to detect it

  • Inventory every instance of Sick Tdc-X401gl Firmware and record the running version against the affected range above.
  • Check external attack surface scans for internet facing instances of the component.
  • Review logs on affected systems for unusual requests, errors or new processes around the vulnerable function.
  • Confirm with an authenticated vulnerability scan once your scanner has a check for this CVE.

How to fix it

  • Apply the fixed version of Sick Tdc-X401gl Firmware named in the vendor advisory.
  • If patching must wait, restrict network access to the affected service and put it behind authentication or a web application firewall rule.
  • Rescan after the change to prove the exposure is gone, then close the ticket.

CTEM action plan

CTEM stageWhat to do for this CVE
ScopeAdd every business service that depends on Sick Tdc-X401gl Firmware to the current CTEM cycle.
DiscoverFind all instances, including shadow and cloud deployments, and record versions and exposure.
PrioritizeRank using EPSS and CVSS together with asset exposure and business impact.
ValidateConfirm the flaw is reachable and exploitable in your environment and that compensating controls work.
MobilizeAssign the fix to the asset owner with a due date matched to the priority, then verify closure.

CWE References

Technical References

Frequently asked questions

CVE-2026-22908 is a critical severity security vulnerability in Sick Tdc-X401gl Firmware with a CVSS score of 9.1. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

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