Read the docs
TI-2017-09439 Aliases CVE-2017-12734GHSA-p45c-2j4h-j2xg

Information disclosure in Siemens LOGO! 8 BM

Priority LOW 36CWE-895Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-200.

Summary

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V1.81.2). An attacker with network access to the integrated web server on port 80/tcp could obtain the session ID of an active user session. A user must be logged in to the web interface. Siemens recommends to use the integrated webserver on port 80/tcp only in trusted networks.

Why it matters now

EPSS 0.01462 73rd percentileScored 2026-11-07
Fix Fixed LOGO! 8 BM (incl. SIPLUS variants) (Siemens): V1.81.2

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
SiemensLOGO! 8 BM (incl. SIPLUS variants)before V1.81.2V1.81.2Patch availableCNA
  • LOGO! 8 BM (incl. SIPLUS variants) VendorSiemens Affected before V1.81.2 Fixed in V1.81.2 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:siemens:logo\!8_bm_fs-05_firmware:*:*:*:*:*:*:*:*up to 1.81.1VulnerableSiemens
cpe:2.3:h:siemens:logo\!8_bm_fs-05:-:*:*:*:*:*:*:*not specified by NVDRunning onSiemens
  • cpe:2.3:o:siemens:logo\!8_bm_fs-05_firmware:*:*:*:*:*:*:*:* Versions up to 1.81.1 Vulnerable ·Siemens
  • cpe:2.3:h:siemens:logo\!8_bm_fs-05:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens

Remediation

  • Fix · CNA LOGO! 8 BM (incl. SIPLUS variants) (Siemens) Fixed in V1.81.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-12734
  2. 2026-10-03 Alias added: GHSA-p45c-2j4h-j2xg

References

Patch 1

  • TI-2022-16702 Buffer overflow in Siemens LOGO! 12/24RCE CVSS 3.1CRITICAL 9.8
  • TI-2022-16703 Improper input validation in Siemens LOGO! 12/24RCE CVSS 3.1HIGH 7.5
  • TI-2022-16701 Insufficient verification of data authenticity in Siemens LOGO! 8 BM CVSS 3.1HIGH 7.5
  • TI-2022-16704 Improper input validation in Siemens LOGO! 12/24RCE CVSS 3.1MEDIUM 5.3

Sources

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