The vulnerability of industrial remote access systems mymbCONNECT24 and mbCONNECT24, the VPN portal myREX24, and the virtual server myREX24.virtual lies in their ability to bypass authentication by using a user-controlled key. This allows attackers to circumvent existing security restrictions and gain access to another user’s account.
🗓️ 23 Jan 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 6 Views
| Reporter | Title | Published | Views | Family All 9 |
|---|---|---|---|---|
 | CVE-2025-3091 | 24 Jun 202508:15 | – | circl |
 | Helmholz myREX24、MB Connect Line mymbCONNECT24和MB Connect Line mbCONNECT24 安全漏洞 | 24 Jun 202500:00 | – | cnnvd |
 | CVE-2025-3091 | 24 Jun 202508:10 | – | cve |
 | CVE-2025-3091 MB connect line: Authorization bypass in mbCONNECT24/mymbCONNECT24 | 24 Jun 202508:10 | – | cvelist |
 | EUVD-2025-19010 | 3 Oct 202520:07 | – | euvd |
 | CVE-2025-3091 | 24 Jun 202509:15 | – | nvd |
 | PT-2025-26710 · Mb Connect Line +1 · Mbconnect24 +2 | 24 Jun 202500:00 | – | ptsecurity |
 | CVE-2025-3091 | 26 Jun 202508:19 | – | redhatcve |
 | CVE-2025-3091 MB connect line: Authorization bypass in mbCONNECT24/mymbCONNECT24 | 24 Jun 202508:10 | – | vulnrichment |
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23 Jan 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 27.1
CVSS 37.5
EPSS0.00332