CVE-2024-50310Network attack vector

Unauthenticated filesystem access via improper authorization

Published Nov 12, 2024 · Updated Nov 12, 2024

Incorrect authorization in Siemens SIMATIC CP 1543-1 V4.0 firmware 4.0.44 through 4.0.49 allows remote attackers to access the filesystem. The network service on port 8448/tcp fails to enforce authorization before permitting filesystem access; Siemens has not disclosed the affected request handler or authorization check. No authentication or user interaction is required, and the documented consequence is filesystem confidentiality loss without reported modification or service interruption.

CVSS severity8.7
High
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Siemens SIMATIC CP 1543-1 V4.0 firmware 4.0.44 through 4.0.49 allows remote attackers to access the filesystem. The network service on port 8448/tcp fails to enforce authorization before permitting filesystem access; Siemens has not disclosed the affected request handler or authorization check. No authentication or user interaction is required, and the documented consequence is filesystem confidentiality loss without reported modification or service interruption.

The record

CVE
CVE-2024-50310
Published
Nov 12, 2024
Updated
Nov 12, 2024
Vendor
Siemens
Product
SIMATIC CP 1543-1
Classifications
CWE-863, T1190
Attack vector
network
Privileges
unauthenticated

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

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Is a vulnerable build present?

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

  1. Affected versionversion=V4.0.44 <V4.0.50

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens · SIMATIC CP 1543-1version=V4.0.44 <V4.0.50

Published CVSS scores

8.7Siemens ProductCERTCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.5Siemens ProductCERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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-863Incorrect Authorization
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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