5.3

CVE-2025-40576: siemens scalance_lpe9403_firmware NULL Pointer Dereference

CVSS: 5.3v4.0MediumModified
Published 13-05-2025Last modified 08-07-2025
Open JSON

Vulnerability summary

CVE-2025-40576 is a medium (CVSS 5.3) NULL Pointer Dereference vulnerability in siemens scalance_lpe9403_firmware. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 18.8% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.28%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-05-2025
    PublishedVulnerability first disclosed.
  2. 08-07-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

+0.01 pp

From 0.27% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.28%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Siemens1 product

1 vendor · 1 product

References

1 links