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No exploitation reportedFix available

CVE-2020-25228

No exploitation reported by the sources we read.

  • Published2020-12-14
  • Fixed in8.3
  • WeaknessCWE-306

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2020-12-1421:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-25228?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-25228?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Siemens logo\! 8 bm firmwareversion to verify
BranchAffectedFixed in
8.3< 8.38.3

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • ICSA-20-343-10 CISA1 known affected

    Siemens LOGO! 8 BM

    Siemens LOGO! 8 BM (incl.'SIPLUS variants): All versions < V8.3

Full record on NVD

Fix

  1. Update Siemens logo\! 8 bm firmware to 8.3
  2. Vendor fix CISA ICSA-20-343-10 · 1 productUpdate to V8.3. Notice that in order to update, a new hardware version if required.
  3. Mitigation from the vendor CISA ICSA-20-343-10 · 1 productApply Defense-in-Depth concept, including protection concept outlined in the system manual.

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVSS 3.19.8read 2026-10-23
  • NVDCVSS 2.010read 2026-10-23
  • CNAweakness (CWE)CWE-306read 2026-10-23
  • FIRST EPSSEPSS score1.6 %2026-10-22

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2020-12-14
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2020-25228?

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.

Is CVE-2020-25228 actively exploited?

Active exploitation of CVE-2020-25228 has not been confirmed. Its EPSS score was 1.6% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-25228?

CVE-2020-25228 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Running Siemens LOGO! 8 BM? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

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