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Fencer Intel
medium 5.5

CVE-2020-25236 json

A vulnerability has been identified in LOGO!

published 5y ago modified 4mo ago also EUVD-2020-17926

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 18%
public exploits
0
none known

Summary

A vulnerability has been identified in LOGO! 12/24RCE (6ED1052-1MD08-0BA1) (All versions), LOGO! 12/24RCEo (6ED1052-2MD08-0BA1) (All versions), LOGO! 230RCE (6ED1052-1FB08-0BA1) (All versions), LOGO! 230RCEo (6ED1052-2FB08-0BA1) (All versions), LOGO! 24CE (6ED1052-1CC08-0BA1) (All versions), LOGO! 24CEo (6ED1052-2CC08-0BA1) (All versions), LOGO! 24RCE (6ED1052-1HB08-0BA1) (All versions), LOGO! 24RCEo (6ED1052-2HB08-0BA1) (All versions), SIPLUS LOGO! 12/24RCE (6AG1052-1MD08-7BA1) (All versions), SIPLUS LOGO! 12/24RCEo (6AG1052-2MD08-7BA1) (All versions), SIPLUS LOGO! 230RCE (6AG1052-1FB08-7BA1) (All versions), SIPLUS LOGO! 230RCEo (6AG1052-2FB08-7BA1) (All versions), SIPLUS LOGO! 24CE (6AG1052-1CC08-7BA1) (All versions), SIPLUS LOGO! 24CEo (6AG1052-2CC08-7BA1) (All versions), SIPLUS LOGO! 24RCE (6AG1052-1HB08-7BA1) (All versions), SIPLUS LOGO! 24RCEo (6AG1052-2HB08-7BA1) (All versions). The control logic (CL) the LOGO! 8 executes could be manipulated in a way that could cause the device executing the CL to improperly handle the manipulation and crash. After successful execution of the attack, the device needs to be manually reset.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-068-05 updated cvss 5.5

Siemens LOGO! 8 BM

  • Siemens LOGO! 12/24RCE (6ED1052-1MD08-0BA1) Siemens LOGO! 12/24RCEo (6ED1052-2MD08-0BA1) Siemens LOGO! 24CE (6ED1052-1CC08-0BA1) Siemens LOGO! 24CEo (6ED1052-2CC08-0BA1) Siemens LOGO! 24RCE (6ED1052-1HB08-0BA1) Siemens LOGO! 24RCEo (6ED1052-2HB08-0BA1)
    +10 more products
    Siemens LOGO! 230RCE (6ED1052-1FB08-0BA1) Siemens LOGO! 230RCEo (6ED1052-2FB08-0BA1) Siemens SIPLUS LOGO! 12/24RCE (6AG1052-1MD08-7BA1) Siemens SIPLUS LOGO! 12/24RCEo (6AG1052-2MD08-7BA1) Siemens SIPLUS LOGO! 24CE (6AG1052-1CC08-7BA1) Siemens SIPLUS LOGO! 24CEo (6AG1052-2CC08-7BA1) Siemens SIPLUS LOGO! 24RCE (6AG1052-1HB08-7BA1) Siemens SIPLUS LOGO! 24RCEo (6AG1052-2HB08-7BA1) Siemens SIPLUS LOGO! 230RCE (6AG1052-1FB08-7BA1) Siemens SIPLUS LOGO! 230RCEo (6AG1052-2FB08-7BA1)
    affected: mitigation, no fix planned

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:T/RC:C
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • Siemens LOGO! 12/24RCE
  • Siemens LOGO! 12/24RCEo
  • Siemens LOGO! 230RCE
  • Siemens LOGO! 230RCEo
  • Siemens LOGO! 24CE
  • Siemens LOGO! 24CEo
  • Siemens LOGO! 24RCE
  • Siemens LOGO! 24RCEo
  • Siemens SIPLUS LOGO! 12/24RCE
  • Siemens SIPLUS LOGO! 12/24RCEo
  • Siemens SIPLUS LOGO! 230RCE
  • Siemens SIPLUS LOGO! 230RCEo
  • Siemens SIPLUS LOGO! 24CE
  • Siemens SIPLUS LOGO! 24CEo
  • Siemens SIPLUS LOGO! 24RCE
  • Siemens SIPLUS LOGO! 24RCEo

Classification

Weakness
  • CWE-755 Improper Handling of Exceptional Conditions

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.