CVE-2025-40577

5.3 mediumEPSS 0.3%

Medium (5.3) in siemens scalance lpe9403 firmware. EPSS 0.3% chance of exploitation in the next 30 days.

A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0 HF0). 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.

Severity

CVSS 4.0

5.3 medium

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

CVSS 3.1

4.3 medium

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 20% of CVEs (scores of 2026-10-31)
CWE: CWE-125
Published: 2025-05-13
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

siemens:scalance_lpe9403_firmware

References

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

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