Security readout for executives and security teams
Plain-English summary
SICK TDC-X401GL firmware update files may expose password hashes for system accounts. If an attacker obtains those files, they may recover credentials and access the device without authorization. The published severity is medium, but impact depends on how firmware files and device management access are protected.
Executive priority
Treat this as a moderate-priority industrial device exposure. It is not reported as actively exploited, but credential recovery from firmware can create persistent access risk. Prioritize asset identification, firmware-file control, and monitoring vendor guidance.
Technical view
CVE-2026-22911 affects SICK AG TDC-X401GL, listed as all versions. The issue is mapped to CWE-798 and has CVSS 3.1 score 5.3, vector AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. The described weakness is disclosure of system account password hashes in firmware update files.
Likely exposure
Organizations operating SICK TDC-X401GL devices are potentially affected. Exposure is higher where firmware update files are broadly accessible, externally shared, or stored in weakly controlled repositories. The source bundle does not identify other affected products.
Exploitation context
No CISA KEV listing or cited source indicates active exploitation. The CVSS vector indicates remote, low-complexity conditions without privileges or user interaction, but the described path centers on access to firmware update files and recovery of exposed password hashes.
Researcher notes
Public details are limited. The advisory states password hashes are exposed in firmware update files, but the bundle does not provide patch details, affected firmware build ranges beyond all versions, or exploitation evidence. Avoid assuming compromise without local validation.
Mitigation direction
- Check SICK PSIRT advisory SCA-2026-0001 for current vendor remediation guidance.
- Apply vendor-provided updates or instructions when SICK publishes them.
- Restrict access to firmware update files to authorized personnel and trusted systems.
- Follow SICK cybersecurity operating guidelines for device hardening and account management.
- Apply CISA ICS recommended practices for segmentation and controlled remote access.
Validation and detection
- Inventory environments for SICK TDC-X401GL devices.
- Confirm whether any TDC-X401GL firmware update files are stored in accessible repositories.
- Review access controls around firmware distribution and maintenance workflows.
- Check SICK PSIRT for updated affected-version and remediation information.
- Assess logs for unexpected device authentication or management access.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-798: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-22911 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://sick.com/psirtCVE reference · x_SICK PSIRT Security Advisories
- https://www.sick.com/media/docs/9/19/719/special_information_sick_operating_guidelines_cybersecurity_by_sick_en_im0106719.pdfCVE reference · x_SICK Operating Guidelines
- https://www.cisa.gov/resources-tools/resources/ics-recommended-practicesCVE reference · x_ICS-CERT recommended practices on Industrial Security
- https://www.first.org/cvss/calculator/3.1CVE reference · x_CVSS v3.1 Calculator
- https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0001.jsonCVE reference · x_The canonical URL.
- https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0001.pdfCVE reference · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Use of Hard-coded Credentials
Use of Hard-coded Credentials represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.