A vulnerability has been identified in LOGO!

published 2021-03-15 5 y ago modified 2026-06-17 4 mo 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

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.

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 2024-10-08 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 productsfewer

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, 2026-11-08).

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

CVE List CVE-2020-25236
NVD CVE-2020-25236

Fencer Vulns 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.

Summary