CVE-2021-34580— Remote user enumeration in mymbCONNECT24, mbCONNECT24 <= 2.9.0
Quick assessment
Affected
MB connect line mymbCONNECT24
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.
Mb Connect Line MB CONNECT LINE mbCONNECT24和MB CONNECT LINE mymbCONNECT24都是德国MB CONNECT LINE（Mb Connect Line）公司的产品。MB CONNECT LINE mbCONNECT24是一套远程服务门户网站。该产品支持远程接入、数据记录和报警等功能。MB CONNECT LINE mymbCONNECT24是一款适用于虚拟环境的内部远程维护解决方案。 MB CONNECT LINE mbCONNECT24和
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2021-34580
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Remote user enumeration in mymbCONNECT24, mbCONNECT24 <= 2.9.0
Source: CVE Program / CVE List V5
Vulnerability Description
In mymbCONNECT24, mbCONNECT24 <= 2.9.0 an unauthenticated user can enumerate valid backend users by checking what kind of response the server sends for crafted invalid login attempts.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
响应差异性信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
MB CONNECT LINE mbCONNECT24和MB CONNECT LINE mymbCONNECT24 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mb Connect Line MB CONNECT LINE mbCONNECT24和MB CONNECT LINE mymbCONNECT24都是德国MB CONNECT LINE（Mb Connect Line）公司的产品。MB CONNECT LINE mbCONNECT24是一套远程服务门户网站。该产品支持远程接入、数据记录和报警等功能。MB CONNECT LINE mymbCONNECT24是一款适用于虚拟环境的内部远程维护解决方案。 MB CONNECT LINE mbCONNECT24和
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 |
|---|---|---|---|---|
| MB connect line | mymbCONNECT24 | 2.9.0 ~ 2.9.0 | - |
|
| MB connect line | mbCONNECT24 | 2.9.0 ~ 2.9.0 | - |
|
II. Public POCs for CVE-2021-34580
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-34580
请登录查看更多情报信息。
Other References for CVE-2021-34580 (1)
-
https://cert.vde.com/en/advisories/VDE-2021-037/ x_refsource_CONFIRM
IV. Related Vulnerabilities
Same product: mymbCONNECT24
-
CVE-2022-22520
User enumeration vulnerability in MB connect line and Helmho -
CVE-2021-34575
Information Exposure in mymbCONNECT24, mbCONNECT24 <= 2.8.0 -
CVE-2021-34574
Password policy evasion in products of MB connect line and H -
CVE-2020-12527
Improper Access Validation in products of MB connect line an -
CVE-2020-12528
mymbCONNECT24 安全漏洞
Same vendor: MB connect line
-
CVE-2026-14448
Authenticated RCE in system_certificates view -
CVE-2026-10521
Authenticated unintended access to critical program paramete -
CVE-2026-40852
Command injection via malicious configuration -
CVE-2026-40851
Command injection via USB -
CVE-2026-40850
Unauthenticated SQLi in getAccountData function
Same weakness: CWE-204
-
CVE-2026-82043
UTMStack < 11.2.16 Account Enumeration via Password Reset En -
CVE-2026-104439
YesWiki before 4.6.7 User Enumeration via Lost-Password Flow -
CVE-2026-86778
Username Enumeration in Maksisoft Technology's Maksisoft Gym -
CVE-2026-102587
Moodle: user list filters bypass profile field visibility -
CVE-2026-84717
Automation-controller: automation-controller: unauthenticate
V. Comments for CVE-2021-34580
No comments yet