CVE-2025-40579

low-risk

Published 2025-05-13

A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0 HF0). Affected devices are vulnerable to a stack-based buffer overflow. This could allow a non-privileged local attacker to execute arbitrary code on the device or to cause a denial of service condition.

Do I need to act?

0.05% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 6.7/10 Medium

LOCAL / HIGH complexity

Affected Products (1)

Scalance Lpe9403 Firmware

Affected Vendors

Siemens

References (1)

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

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low-risk

Severity 17/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal