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CVE-2025-40575

MEDIUM
5.3
CVSS Score
Published: May 13, 2025 at 09:38 AM UTC
Updated: June 17, 2026 at 09:21 AM UTC
2 products affected across 1 vendorScalance Lpe9403Scalance LPE9403 Firmware

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Scalance LPE9403 Firmware· Siemens
60%
v < V4.0 HF0
Affected range stops below V4.0 HF0, so it looks safe — our inference, not a vendor statement
siemens-scalance-lpe9403 (same device)
Scalance Lpe9403· Siemensdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://cert-portal.siemens.com/productcert/html/ssa-327438.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMsiemens
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-457NVD-CWE-noinfo

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