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CVE-2026-14837— SSH Enablement Signature Verification Bypass

Quick assessment

Affected
Lenze c430
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Lenze c430是美国Lenze公司的一款面向紧凑型机器的运动控制器。 Lenze c430 1.15.2之前版本、c520 1.15.2之前版本、c550 1.15.2之前版本、i950 GenA 1.14.2之前版本和i950 GenB 2.0.3之前版本存在加密问题漏洞，该漏洞源于SSH启用机制中的签名验证不当，可能导致低权限本地攻击者绕过SSH启用文件签名验证并启用SSH访问，从而导致未授权管理访问和完全系统破坏。

CVSS 7.8 · High EPSS 0.11% · P1

Affected Version Matrix 5

VendorProduct Version RangeStatus
Lenze c430 1.0.0< 1.15.2 affected
Lenze c520 1.0.0< 1.15.2 affected
Lenze c550 1.0.0< 1.15.2 affected
Lenze i950 GenA 1.0.0< 1.14.2 affected
Lenze i950 GenB 2.0.0< 2.0.3 affected
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I. Basic Information for CVE-2026-14837

Vulnerability Information
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Vulnerability Title
SSH Enablement Signature Verification Bypass
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Lenze c430 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Lenze c430是美国Lenze公司的一款面向紧凑型机器的运动控制器。 Lenze c430 1.15.2之前版本、c520 1.15.2之前版本、c550 1.15.2之前版本、i950 GenA 1.14.2之前版本和i950 GenB 2.0.3之前版本存在加密问题漏洞，该漏洞源于SSH启用机制中的签名验证不当，可能导致低权限本地攻击者绕过SSH启用文件签名验证并启用SSH访问，从而导致未授权管理访问和完全系统破坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Lenze c430 1.0.0 ~ 1.15.2 -
Lenze c520 1.0.0 ~ 1.15.2 -
Lenze c550 1.0.0 ~ 1.15.2 -
Lenze i950 GenA 1.0.0 ~ 1.14.2 -
Lenze i950 GenB 2.0.0 ~ 2.0.3 -

II. Public POCs for CVE-2026-14837

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III. Intelligence Information for CVE-2026-14837

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Vendor Advisories for CVE-2026-14837 (1)

IV. Related Vulnerabilities

Same vendor: Lenze
Same weakness: CWE-347

V. Comments for CVE-2026-14837

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