CVE-2026-14837: CWE-347 Improper Verification of Cryptographic Signature in Lenze c430
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.
AI Analysis
Technical Summary
This vulnerability in Lenze c430 involves improper verification of cryptographic signatures (CWE-347) related to the SSH enablement mechanism. An attacker with low privileges on the device can bypass the signature verification process for the SSH enable file, thereby enabling SSH access without proper authorization. This flaw can lead to unauthorized administrative access and complete compromise of the affected system. The CVSS 4.0 score of 8.5 reflects high impact and exploitability with low attack complexity and no user interaction required. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation allows a low-privileged local attacker to bypass SSH enable file signature verification, enabling SSH access and resulting in unauthorized administrative access and full system compromise of the Lenze c430 device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict local access to trusted users only and monitor for unauthorized SSH enablement attempts.
CVE-2026-14837: CWE-347 Improper Verification of Cryptographic Signature in Lenze c430
Description
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.
CVSS v4.0
Score 8.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Lenze c430 involves improper verification of cryptographic signatures (CWE-347) related to the SSH enablement mechanism. An attacker with low privileges on the device can bypass the signature verification process for the SSH enable file, thereby enabling SSH access without proper authorization. This flaw can lead to unauthorized administrative access and complete compromise of the affected system. The CVSS 4.0 score of 8.5 reflects high impact and exploitability with low attack complexity and no user interaction required. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation allows a low-privileged local attacker to bypass SSH enable file signature verification, enabling SSH access and resulting in unauthorized administrative access and full system compromise of the Lenze c430 device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict local access to trusted users only and monitor for unauthorized SSH enablement attempts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- CERTVDE
- Date Reserved
- 2026-07-06T09:59:37.390Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a670ace9c2644c7f8a20683
Added to database: 07/27/2026, 07:37:50 UTC
Last enriched: 07/30/2026, 01:28:13 UTC
Last updated: 09/09/2026, 22:52:08 UTC
Views: 103
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