CVE-2026-14837
highEPSS 0.001 · 1. PerzentilDEEUEPSS · bewertet 2026-10-17
Multiple Lenze products are affected by an improper signature verification vulnerability in the SSH enablement mechanism. A low-privileged local attacker can bypass verification of the SSH enable file signature and enable SSH access on the device. Successful exploitation may result in unauthorized administrative access and complete system compromise.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- Behobenlenze_psirt
To resolve this security vulnerability, we recommend installing a firmware update. | Product | Firmware | Fixed Version | | --------------- | -------- | ------------- | | Controller c430 | c4xx | 1.15.2 | | c520 | c5xx | 1.15.2 | | c550 | c5xx | 1.15.2 | | i950 GenA | i950 | 1.15.0 | | i950 GenB | i950 | 2.0.3 |
- Mitigationlenze_psirt
Check to see if there is an activation file on the SD Card, and delete it. In addition, it is recommended that you protect each access path with appropriate measures, such as physically securing access to the SD Card, authorizing file transfers via PLC Designer (if supported by the respective product), authorizing file transfers via OPC UA (if supported by the respective product), and customizing the key for SFTP access.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (12)
Betroffene Produkte und Versionsbereiche.
- Firmware c4xx 1.15.2 installed on Controller c430alle Versionenfixedlenze_psirtDEcpe:2.3:o:lenze:c4xx_firmware:1.15.2:*:*:*:*:*:*:*
- Firmware c4xx <1.15.2 installed on Controller c430alle Versionenlenze_psirtDEcpe:2.3:o:lenze:c4xx_firmware:*:*:*:*:*:*:*:*
- Firmware c5xx 1.15.2 installed on c520alle Versionenfixedlenze_psirtDEcpe:2.3:o:lenze:c5xx_firmware:1.15.2:*:*:*:*:*:*:*
- Firmware c5xx <1.15.2 installed on Controller c520alle Versionenlenze_psirtDEcpe:2.3:o:lenze:c5xx_firmware:*:*:*:*:*:*:*:*
- Firmware i950 1.15.0 installed on i950 GenAalle Versionenfixedlenze_psirtDEcpe:2.3:o:lenze:i950_firmware:1.15.0:*:*:*:*:*:*:*
- Firmware i950 2.0.3 installed on i950 GenBalle Versionenfixedlenze_psirtDEcpe:2.3:o:lenze:i950_firmware:2.0.3:*:*:*:*:*:*:*
- Firmware i950 <1.14.2 installed on i950 GenAalle Versionenlenze_psirtDEcpe:2.3:o:lenze:i950_firmware:*:*:*:*:*:*:*:*
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- VDE-2026-077Lenze: Incorrect signature validation in the enable SSH routine2026-07-27csaf · lenze_psirtDE
The affected products belong to the Controller or Servo Drive product family and contain a vulnerability in a security-critical activation mechanism for service access. The signature verification of a file used for SSH activation can be compromised, which could allow unauthorized access to the device.
auch bekannt als (3)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (3)
Externe Belege — Patches, Meldungen, Analysen.
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