Description

A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions). Affected devices do not properly validate incoming Profinet packets.
An unauthenticated remote attacker can exploit this flaw by sending a specially crafted malicious packet, which leads to a crash of the dcpd process.

Classification

CVE ID: CVE-2025-40577

CVSS Base Severity: MEDIUM

CVSS Base Score: 4.3

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

Affected Products

Vendor: Siemens

Product: SCALANCE LPE9403

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 12.05% (scored less or equal to compared to others)

EPSS Date: 2025-06-11 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-40577
https://cert-portal.siemens.com/productcert/html/ssa-327438.html

Timeline