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TI-2023-12139 Aliases CVE-2023-27407GHSA-p7q5-cvw2-cc4p

Command injection in Siemens SCALANCE LPE9403

Priority MEDIUM 45CWE-77Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-77.

Summary

A vulnerability has been identified in SCALANCE LPE9403 (All versions < V2.1). The web based management of affected device does not properly validate user input, making it susceptible to command injection. This could allow an authenticated remote attacker to access the underlying operating system as the root user.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01297 70th percentileScored 2026-11-07
Fix Fixed SCALANCE LPE9403 (Siemens): V2.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SiemensSCALANCE LPE9403before V2.1V2.1Patch availableCNA
  • SCALANCE LPE9403 VendorSiemens Affected before V2.1 Fixed in V2.1 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:siemens:scalance_lpe9403_firmware:*:*:*:*:*:*:*:*before 2.1VulnerableSiemens
cpe:2.3:h:siemens:scalance_lpe9403:-:*:*:*:*:*:*:*not specified by NVDRunning onSiemens
  • cpe:2.3:o:siemens:scalance_lpe9403_firmware:*:*:*:*:*:*:*:* Versions before 2.1 Vulnerable ·Siemens
  • cpe:2.3:h:siemens:scalance_lpe9403:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens

Remediation

  • Fix · CNA SCALANCE LPE9403 (Siemens) Fixed in V2.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-27407
  2. 2026-10-03 Alias added: GHSA-p7q5-cvw2-cc4p

References

Advisory 1

  • TI-2022-00753 A flaw was found in the way the "flags" member of the new pipe buffer structure was… KEVCVSS 3.1HIGH 7.8
  • TI-2021-02923 Out-of-bounds write in polkit KEVCVSS 3.1HIGH 7.8
  • TI-2021-02413 NULL pointer deref in signature_algorithms processing CVSS 3.1MEDIUM 5.9
  • TI-2025-20231 A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All… CVSS 4.0HIGH 8.7
  • TI-2025-20230 Path traversal in Siemens SCALANCE LPE9403 CVSS 4.0HIGH 8.6
  • TI-2025-20229 OS command injection in Siemens SCALANCE LPE9403 CVSS 4.0HIGH 8.6
See all 26 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences