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No exploitation reportedFix available

CVE-2020-25232

No exploitation reported by the sources we read.

  • Published2020-12-14
  • Fixed in8.3
  • WeaknessCWE-327

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). 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.

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-2020-25232?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-25232?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 3.17.5read 2026-10-23
  • NVDCVSS 2.05read 2026-10-23
  • CNAweakness (CWE)CWE-327read 2026-10-23
  • FIRST EPSSEPSS score0.8 %2026-10-22

Technical details

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

Frequently asked questions

What is CVE-2020-25232?

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.

Is CVE-2020-25232 actively exploited?

Active exploitation of CVE-2020-25232 has not been confirmed. Its EPSS score was 0.8% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-25232?

CVE-2020-25232 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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