CVE-2025-40581

Configuration read and modification via authentication bypass

Published May 13, 2025 · Updated May 13, 2025

Authentication bypass in Siemens SCALANCE LPE9403 before 2.1 HF0 allows local users to read and modify Edge Client configuration. Siemens identifies the locus as the SINEMA Remote Connect Edge Client but has not disclosed which alternate path or channel omits authentication. Exploitation requires low-privileged local access and the Edge Client to be installed; the bounded impact is configuration disclosure and modification.

CVSS severity7.1
High
EPSS probability0.15%
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

Authentication bypass in Siemens SCALANCE LPE9403 before 2.1 HF0 allows local users to read and modify Edge Client configuration. Siemens identifies the locus as the SINEMA Remote Connect Edge Client but has not disclosed which alternate path or channel omits authentication. Exploitation requires low-privileged local access and the Edge Client to be installed; the bounded impact is configuration disclosure and modification.

The record

CVE
CVE-2025-40581
Published
May 13, 2025
Updated
May 13, 2025
Vendor
Siemens
Product
SCALANCE LPE9403
Classifications
CWE-288, T1068
Attack vector
local
Privileges
authenticated

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

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 <*

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Siemens · SCALANCE LPE9403version=0 <*

Published CVSS scores

8.4Siemens ProductCERTCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
7.1Siemens ProductCERTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-288Authentication Bypass Using an Alternate Path or Channel
T1068Exploitation for Privilege Escalation

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