CVE-2024-50558Network attack vector

Authenticated service interruption via read-only access control

Published Nov 12, 2024 · Updated Nov 12, 2024

Improper access control in Siemens SCALANCE M-800 and RUGGEDCOM RM1224 firmware before 8.2 allows remote authenticated users to interrupt service. The device access-control handling permits read-only users to reach an operation that can trigger temporary denial of service, but Siemens has not disclosed the operation or request involved. A valid read-only account and network access to the management interface are required, and the documented consequence is a temporary service interruption without data disclosure or modification.

CVSS severity5.3
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Siemens SCALANCE M-800 and RUGGEDCOM RM1224 firmware before 8.2 allows remote authenticated users to interrupt service. The device access-control handling permits read-only users to reach an operation that can trigger temporary denial of service, but Siemens has not disclosed the operation or request involved. A valid read-only account and network access to the management interface are required, and the documented consequence is a temporary service interruption without data disclosure or modification.

The record

CVE
CVE-2024-50558
Published
Nov 12, 2024
Updated
Nov 12, 2024
Vendor
Siemens
Product
SCALANCE MUM856-1 (RoW)
Classifications
CWE-284, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 12, 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=0 <V8.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Siemens · SCALANCE MUM856-1 (RoW)version=0 <V8.2
Siemens · SCALANCE MUM856-1 (B1)version=0 <V8.2
Siemens · SCALANCE MUM856-1 (EU)version=0 <V8.2
Siemens · RUGGEDCOM RM1224 LTE(4G) NAMversion=0 <V8.2
Siemens · RUGGEDCOM RM1224 LTE(4G) EUversion=0 <V8.2
Siemens · SCALANCE M874-3version=0 <V8.2
Siemens · SCALANCE MUM856-1 (A1)version=0 <V8.2
Siemens · SCALANCE MUM853-1 (B1)version=0 <V8.2
Siemens · SCALANCE MUM856-1 (CN)version=0 <V8.2
Siemens · SCALANCE M812-1 ADSL Routerversion=0 <V8.2
Siemens · SCALANCE S615 EEC LAN Routerversion=0 <V8.2
Siemens · SCALANCE M826-2 SHDSL-Routerversion=0 <V8.2
Siemens · SCALANCE M816-1 ADSL Routerversion=0 <V8.2
Siemens · SCALANCE M876-3 (ROK)version=0 <V8.2
Siemens · SCALANCE M876-3version=0 <V8.2
Siemens · SCALANCE MUM853-1 (A1)version=0 <V8.2
Siemens · SCALANCE M804PBversion=0 <V8.2
Siemens · SCALANCE M876-4version=0 <V8.2
Siemens · SCALANCE M876-4 (NAM)version=0 <V8.2
Siemens · SCALANCE MUM853-1 (EU)version=0 <V8.2
Siemens · SCALANCE S615 LAN-Routerversion=0 <V8.2
Siemens · SCALANCE M876-4 (EU)version=0 <V8.2
Siemens · SCALANCE M874-3 3G-Router (CN)version=0 <V8.2
Siemens · SCALANCE M874-2version=0 <V8.2

Published CVSS scores

4.3Siemens ProductCERTCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
5.3Siemens ProductCERTCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1499Endpoint Denial of Service

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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