CVE-2020-25243

highpriority · track · 29EPSS 0.003 · 24 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.31% (24th) EPSS

CVSS 7.2 · high

Is it mine?

5 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-28

A vulnerability has been identified in LOGO! Soft Comfort (All versions < V8.4). A zip slip vulnerability could be triggered while importing a compromised project file to the affected software. Chained with other vulnerabilities this vulnerability could ultimately lead to a system takeover by an attacker.

remediations

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

A vendor fix is available.

FixedLOGO! Soft Comfortsiemens_psirt
Update to V8.4 or later version
https://support.industry.siemens.com/cs/ww/en/view/109826553/
FixedLOGO! Soft Comfortcisa_csaf_ot
Update to V8.4 or later version
https://support.industry.siemens.com/cs/ww/en/view/109826553/
MitigationLOGO! Soft Comfortsiemens_psirt
If possible do not execute the LOGO! Soft Comfort software with administrative privileges
MitigationLOGO! Soft Comfortcisa_csaf_ot
If possible do not execute the LOGO! Soft Comfort software with administrative privileges

cvss

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

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.1–7.8

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 10

v2.06.1mediumAV:L/AC:L/Au:N/C:C/I:C/A:C/E:Usecondary · CVSS-BT (t0sche)

v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:U/RC:Csecondary · CISA US

v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Lsecondary · productcert@siemens.com DEexploitability 2.5 · impact 2.5

v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:U/RC:Csecondary · Siemens ProductCERT DE

v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:U/RC:Csecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · NVD / NIST USexploitability 1.8 · impact 5.9

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USCWE-22USCWE-22US

affected products (5)

Products and version ranges known to be affected.

LOGO! Soft Comfortall versionscisa_csaf_otUS
Siemens LOGO! Soft Comfort< V8.4cisa_csaf_otUS
Siemens LOGO! Soft ComfortAll versions → V8.4enisa_euvdEU
siemens logo! soft comfortall versionsnvdUScpe:2.3:a:siemens:logo\!_soft_comfort:*:*:*:*:*:*:*:*
Siemens LOGO! Soft Comfort< V8.4siemens_psirtDE

advisories (2)

Vendor and ecosystem advisories describing this.

SSA-983300SSA-983300: Vulnerabilities in LOGO! Soft Comfort2021-04-13csaf · siemens_psirtDE
Two vulnerabilities have been identified in the LOGO! Soft Comfort software. These could allow an attacker to take over a system with the affected software installed. Siemens has released an update for LOGO! Soft Comfort and recommends to update to the latest version.
ICSA-21-103-09Siemens LOGO! Soft Comfort2021-04-13icsa · cisa_csaf_otUS
Two vulnerabilities have been identified in the LOGO! Soft Comfort software. These could allow an attacker to take over a system with the affected software installed. Siemens has released an update for LOGO! Soft Comfort and recommends to update to the latest version.

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 siemens_psirt NVD CVE.org MITRE

published 2021-04-22modified 2026-06-17

references (7)

External citations — patches, advisories, analysis.

scry

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