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TI-2020-15469 Aliases CVE-2020-25232GHSA-5fx7-6vcj-vqfc

Broken or risky cryptographic algorithm in Siemens LOGO! 8 BM

Priority LOW 34CWE-327Published · 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-327.

Summary

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). Due to the usage of an insecure random number generation function and a deprecated cryptographic function, an attacker could extract the key that is used when communicating with an affected device on port 8080/tcp.

Why it matters now

EPSS 0.00816 57th percentileScored 2026-11-07
Fix Fixed LOGO! 8 BM (incl. SIPLUS variants) (Siemens): V8.3

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 V8.3V8.3Patch availableCNA
  • LOGO! 8 BM (incl. SIPLUS variants) VendorSiemens Affected before V8.3 Fixed in V8.3 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:siemens:logo\!_8_bm_firmware:*:*:*:*:*:*:*:*before 8.3VulnerableSiemens
cpe:2.3:h:siemens:logo\!_8_bm:-:*:*:*:*:*:*:*not specified by NVDRunning onSiemens
  • cpe:2.3:o:siemens:logo\!_8_bm_firmware:*:*:*:*:*:*:*:* Versions before 8.3 Vulnerable ·Siemens
  • cpe:2.3:h:siemens:logo\!_8_bm:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens

Remediation

  • Fix · CNA LOGO! 8 BM (incl. SIPLUS variants) (Siemens) Fixed in V8.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-25232
  2. 2026-10-03 Alias added: GHSA-5fx7-6vcj-vqfc

References

Advisory 1

  • 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-2020-06111 Missing authentication in Siemens LOGO! 8 BM CVSS 3.1CRITICAL 9.1
  • 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
See all 15 →

Sources

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