CVE-2025-40581: scalance lpe9403 — Fix

Description

A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions with SINEMA Remote Connect Edge Client installed). Affected devices are vulnerable to an authentication bypass. This could allow a non-privileged local attacker to bypass the authentication of the SINEMA Remote Connect Edge Client, and to read and modify the configuration parameters.

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CVSS v3.1 Score

7.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Weakness Type (CWE)

CWE-288 CWE-288

Affected Products

Vendor	Product	Versions
siemens	scalance_lpe9403_firmware	All
siemens	scalance_lpe9403	All

References

Advisories & Patches

https://cert-portal.siemens.com/productcert/html/ssa-327438.html

Frequently Asked Questions

What is CVE-2025-40581? +

A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions with SINEMA Remote Connect Edge Client installed). Affected devices are vulnerable to an authentication bypass. This could allow a non-privileged local attacker to bypass the authentication of the SINEMA Remote Connect Edge Client, and to read and modify the configuration parameters. It has a CVSS v3.1 base score of 7.1 (HIGH).

How severe is CVE-2025-40581? +

CVE-2025-40581 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-40581? +

CVE-2025-40581 affects products from siemens, specifically: scalance_lpe9403, scalance_lpe9403_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-40581? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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