CVE-2020-12529Network attack vector

Unauthenticated port scanning via LDAP access check

Published Mar 2, 2021 · Updated Sep 16, 2024

SSRF in the LDAP access check in MB connect line mbCONNECT24 and mymbCONNECT24 2.6.2 and earlier allows remote attackers to scan open ports. The check directs a server-side LDAP connection to an attacker-selected destination, turning connection results into a port-state oracle. No authentication or user interaction is required, and the reported consequence is limited to discovery of reachable ports.

CVSS severity5.8
Medium
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

SSRF in the LDAP access check in MB connect line mbCONNECT24 and mymbCONNECT24 2.6.2 and earlier allows remote attackers to scan open ports. The check directs a server-side LDAP connection to an attacker-selected destination, turning connection results into a port-state oracle. No authentication or user interaction is required, and the reported consequence is limited to discovery of reachable ports.

The record

CVE
CVE-2020-12529
Published
Mar 2, 2021
Updated
Sep 16, 2024
Vendor
MB connect line
Product
mbCONNECT24
Classifications
CWE-918, T1046
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 2, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.6.2 <=2.6.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MB connect line · mbCONNECT24version=2.6.2 <=2.6.2
MB connect line · mymbCONNECT24version=2.6.2 <=2.6.2

Published CVSS scores

5.8MB connect lineCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1046Network Service Discovery

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo