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TI-2020-06111 Aliases CVE-2020-7589GHSA-ppw3-jw8r-c26q

Missing authentication in Siemens LOGO! 8 BM

Priority MEDIUM 43CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-306.

Summary

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions). The vulnerability could lead to an attacker reading and modifying the device configuration and obtain project files from affected devices. The security vulnerability could be exploited by an unauthenticated attacker with network access to port 135/tcp. No user interaction is required to exploit this security vulnerability. The vulnerability impacts confidentiality, integrity, and availability of the device. At the time of advisory publication no public exploitation of this security vulnerability was known.

Why it matters now

EPSS 0.02041 81st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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)All versions—No fix listedCNA
  • LOGO! 8 BM (incl. SIPLUS variants) VendorSiemens Affected All versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:siemens:logo\!_8_bm_firmware:*:*:*:*:*:*:*:*all versionsVulnerableSiemens
cpe:2.3:h:siemens:logo\!_8_bm:-:*:*:*:*:*:*:*not specified by NVDRunning onSiemens
  • cpe:2.3:o:siemens:logo\!_8_bm_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Siemens
  • cpe:2.3:h:siemens:logo\!_8_bm:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-7589
  2. 2026-10-03 Alias added: GHSA-ppw3-jw8r-c26q

References

Advisory 2

  • TI-2020-06115 Buffer overflow in Siemens LOGO! 8 BM CVSS 3.1CRITICAL 9.8
  • TI-2022-16702 Buffer overflow in Siemens LOGO! 12/24RCE CVSS 3.1CRITICAL 9.8
  • TI-2020-15465 Missing authentication in Siemens LOGO! 8 BM CVSS 3.1CRITICAL 9.8
  • TI-2020-15472 Insufficiently protected credentials in Siemens LOGO! 8 BM CVSS 3.1HIGH 7.5
  • TI-2022-16703 Improper input validation in Siemens LOGO! 12/24RCE CVSS 3.1HIGH 7.5
  • TI-2017-09440 A vulnerability has been identified in LOGO! 8 BM (incl. CVSS 3.1HIGH 7.4
See all 15 →

Sources

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