CVE-2020-25229

Name: CVE-2020-25229
Creator: NVD / NIST
Published: 2020-12-14T21:15:19.8+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.63%

Last modified Jun 17, 2026

CVE-2020-25229 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). EPSS estimates a 0.63% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). The implemented encryption for communication with affected devices is prone to replay attacks due to the usage of a static key. An attacker could change the password or change the configuration on any affected device if using prepared messages that were generated for another device.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

0.63%

45.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Siemens	Logo\! 8 Bm Firmware	< 8.3

References

https://cert-portal.siemens.com/productcert/pdf/ssa-480824.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-480824.pdfVendor Advisory

Timeline

Published: Dec 14, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-25229?

How severe is CVE-2020-25229?

CVE-2020-25229 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.63% probability of exploitation in the next 30 days.

How do I fix CVE-2020-25229?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-25229?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST