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CVE-2026-82929— Use of Shared Cryptographic Key in mH-DEVELOPER

Quick assessment

Affected
F&F Filipowski mH-DEVELOPER
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.

mH-DEVELOPER 智能家居模块在所有设备上使用相同的硬编码 SSH 主机密钥，且未进行针对每个设备的密钥生成。攻击者若从固件中提取这些密钥，便可搭建一个伪装的 SSH 服务器，客户端会在未收到任何警告的情况下信任该服务器，从而实施中间人攻击并截获凭证。 该问题已在版本 3.0.30 中修复。

CVSS 6.3 · Medium
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I. Basic Information for CVE-2026-82929

Vulnerability Information
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Vulnerability Title
Use of Shared Cryptographic Key in mH-DEVELOPER
Source: CVE Program / CVE List V5
Vulnerability Description
mH-DEVELOPER smart home module uses the same hard-coded SSH host keys on every device, with no per-device key generation. An attacker who extracts these keys from the firmware can set up a rogue SSH server that clients will trust without warning, enabling man-in-the-middle attacks and credential interception. This issue was fixed in version 3.0.30
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的密码学密钥
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
F&F Filipowski mH-DEVELOPER 0 ~ 3.0.30 -

II. Public POCs for CVE-2026-82929

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-82929

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Security Blog Posts for CVE-2026-82929 (1)

Other References for CVE-2026-82929 (1)

Same Patch Batch · F&F Filipowski · 2026-09-28 · 7 CVEs total

CVE-2026-82928 7.7 HIGH Undocumented access path in mH-DEVELOPER
CVE-2026-82935 6.9 MEDIUM Use of End-of-Life components in mH-DEVELOPER
CVE-2026-82930 6.4 MEDIUM Missing Authentication in mH-DEVELOPER
CVE-2026-82933 6.0 MEDIUM Cleartext Transmission of Sensitive Information in mH-DEVELOPER
CVE-2026-82936 5.9 MEDIUM Denial of Service in mH-DEVELOPER
CVE-2026-82932 5.3 MEDIUM Missing Firewall Configuration in mH-DEVELOPER

IV. Related Vulnerabilities

Same product: mH-DEVELOPER
Same vendor: F&F Filipowski
Same weakness: CWE-321

V. Comments for CVE-2026-82929

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