CVE-2020-25228

highpriority · track · 40OT risk · elevatedEPSS 0.016 · 76 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.64% (76th) EPSS

CVSS 10 · high

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-28

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). A service available on port 10005/tcp of the affected devices could allow complete access to all services without authorization. An attacker could gain full control over an affected device, if he has access to this service. The system manual recommends to protect access to this port.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedLOGO! 8 BM (incl.'SIPLUS variants)cisa_csaf_ot
Update to V8.3. Notice that in order to update, a new hardware version if required.
https://support.industry.siemens.com/cs/ww/en/view/109783346/
MitigationLOGO! 8 BM (incl.'SIPLUS variants)cisa_csaf_ot
Apply Defense-in-Depth concept, including protection concept outlined in the system manual.

cvss

Technical severity, 0–10. One row per scoring source.

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 10 · impact 10

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · CISA US

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-306USCWE-306US

affected products (4)

Products and version ranges known to be affected.

Siemens LOGO! 8 BM (incl.'SIPLUS variants): All versions < V8.3all versionscisa_csaf_otUS
Siemens LOGO! 8 BM (incl.'SIPLUS variants)< V8.3cisa_csaf_otUS
Siemens LOGO! 8 BM (incl. SIPLUS variants)All versions → V8.3enisa_euvdEU
siemens logo! 8 bm firmware< 8.3nvdUScpe:2.3:o:siemens:logo\!_8_bm_firmware:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-20-343-10Siemens LOGO! 8 BM2020-12-08icsa · cisa_csaf_otUS
As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2020-12-14modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

scry

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