CVE-2020-10383Network attack vector

Unauthenticated code execution via com_mb24sysapi

Published Apr 14, 2020 · Updated Aug 4, 2024

Remote code execution in MB CONNECT LINE mbCONNECT24 and mymbCONNECT24 2.5.0 and earlier allows remote attackers to execute arbitrary code. The com_mb24sysapi module exposes the code-execution path, but the vendor has not published the affected function or how untrusted input reaches execution. No authentication or user interaction is required, so a network-reachable service can be compromised at the privileges of the affected process.

CVSS severity9.8
Critical
EPSS probability1.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in MB CONNECT LINE mbCONNECT24 and mymbCONNECT24 2.5.0 and earlier allows remote attackers to execute arbitrary code. The com_mb24sysapi module exposes the code-execution path, but the vendor has not published the affected function or how untrusted input reaches execution. No authentication or user interaction is required, so a network-reachable service can be compromised at the privileges of the affected process.

The record

CVE
CVE-2020-10383
Published
Apr 14, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 14, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8MB connect lineCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

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

T1190Exploit Public-Facing Application

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

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Your stack

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