CVE-2025-24009Network attack vector

Unauthenticated disclosure via critical data-record access

Published May 13, 2025 · Updated May 13, 2025

Information disclosure in all Siemens SIRIUS 3RK3 MSS and 3SK2 Safety Relays allows remote attackers to read sensitive records. The devices expose certain critical data records through the PROFINET interface without authenticating the requester; Siemens has not identified the specific records. Network access to that interface is required, and the documented consequence is read-only disclosure, including obfuscated safety passwords.

CVSS severity8.2
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in all Siemens SIRIUS 3RK3 MSS and 3SK2 Safety Relays allows remote attackers to read sensitive records. The devices expose certain critical data records through the PROFINET interface without authenticating the requester; Siemens has not identified the specific records. Network access to that interface is required, and the documented consequence is read-only disclosure, including obfuscated safety passwords.

The record

CVE
CVE-2025-24009
Published
May 13, 2025
Updated
May 13, 2025
Vendor
Siemens
Product
SIRIUS 3RK3 Modular Safety System (MSS)
Classifications
CWE-732, T1552
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 13, 2025CVE publishedPublication date reported by the CVE source.
  2. May 13, 2025Record 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=0 <*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens · SIRIUS 3RK3 Modular Safety System (MSS)version=0 <*
Siemens · SIRIUS 3SK2 Safety Relaysversion=0 <*

Published CVSS scores

5.9Siemens ProductCERTCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
8.2Siemens ProductCERTCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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 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-732Incorrect Permission Assignment for Critical Resource
T1552Unsecured Credentials

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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