PT-2025-20872 · Siemens · Scalance Lpe9403

Published 2025-05-13 · Updated 2025-05-13 · CVE-2025-40577

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions)

Description: A vulnerability has been identified where 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.

Recommendations: For SCALANCE LPE9403 (6GK5998-3GS00-2AC2), consider implementing proper validation of incoming Profinet packets to prevent the dcpd process from crashing. As a temporary workaround, restrict access to the device to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

LPE

RCE

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2025-06088

CVE-2025-40577

Affected Products

Scalance Lpe9403

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2025-40577 · Security Note
• https://cert-portal.siemens.com/productcert/html/ssa-327438.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-06088 · Security Note
• https://twitter.com/CVEnew/status/1922228923808559609 · Twitter Post
• https://t.me/cvetracker/23723 · Telegram Post