CVE-2020-25238

highpriority · track · 31EPSS 0.009 · 58 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.86% (58th) EPSS

CVSS 7.2 · high

Is it mine?

12 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

A vulnerability has been identified in PCS neo (Administration Console) (All versions < V3.1), TIA Portal (V15, V15.1 and V16). Manipulating certain files in specific folders could allow a local attacker to execute code with SYSTEM privileges. The security vulnerability could be exploited by an attacker with a valid account and limited access rights on the system.

remediations

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

A vendor fix is available.

FixedPCS neo (Administration Console)siemens_psirt
Update to V3.1 or later version
FixedTIA Portalsiemens_psirt
Update TIA Administrator to V1.0 SP2 Upd2 or later version
https://support.industry.siemens.com/cs/ww/en/view/114358/
FixedPCS neo (Administration Console)cisa_csaf_ot
Update to V3.1 or later version
FixedTIA Portalcisa_csaf_ot
Update TIA Administrator to V1.0 SP2 Upd2 or later version
https://support.industry.siemens.com/cs/ww/en/view/114358/
MitigationPCS neo (Administration Console)siemens_psirt
For PCS neo apply measures described in “Industrial Security in SIMATIC PCS neo”: https://support.industry.siemens.com/cs/ww/en/view/109771524
MitigationTIA Portalsiemens_psirt
For PCS neo apply measures described in “Industrial Security in SIMATIC PCS neo”: https://support.industry.siemens.com/cs/ww/en/view/109771524
MitigationPCS neo (Administration Console)cisa_csaf_ot
For PCS neo apply measures described in “Industrial Security in SIMATIC PCS neo”: https://support.industry.siemens.com/cs/ww/en/view/109771524
MitigationTIA Portalcisa_csaf_ot
For PCS neo apply measures described in “Industrial Security in SIMATIC PCS neo”: https://support.industry.siemens.com/cs/ww/en/view/109771524

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

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

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

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · CISA US

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-427USprimaryCWE-284USCWE-284USCWE-284US

affected products (12)

Products and version ranges known to be affected.

PCS neo (Administration Console)all versionscisa_csaf_otUS
TIA Portalall versionscisa_csaf_otUS
Siemens PCS neo (Administration Console)< V3.1cisa_csaf_otUS
Siemens TIA Portal≤ 15|15.1|16cisa_csaf_otUS
Siemens PCS neo (Administration Console)All versions → V3.1enisa_euvdEU
Siemens TIA Portal≤ V15, V15.1 and V16enisa_euvdEU
siemens simatic process control system neo< 3.1nvdUScpe:2.3:a:siemens:simatic_process_control_system_neo:*:*:*:*:*:*:*:*
siemens totally integrated automation portal= 15nvdUScpe:2.3:a:siemens:totally_integrated_automation_portal:*:*:*:*:*:*:*:*
siemens totally integrated automation portal= 15.1nvdUScpe:2.3:a:siemens:totally_integrated_automation_portal:*:*:*:*:*:*:*:*
siemens totally integrated automation portal= 16nvdUScpe:2.3:a:siemens:totally_integrated_automation_portal:*:*:*:*:*:*:*:*
Siemens PCS neo (Administration Console)< V3.1siemens_psirtDE
Siemens TIA Portal≤ V15, V15.1 and V16siemens_psirtDE

advisories (2)

Vendor and ecosystem advisories describing this.

SSA-428051SSA-428051: Privilege Escalation Vulnerability in TIA Administrator2021-02-09csaf · siemens_psirtDE
The latest update for TIA Administrator, installed together with TIA Portal and PCS neo, fixes a privilege escalation vulnerability that could allow local users to escalate privileges and execute code as local SYSTEM user. Siemens has released updates for the affected products and recommends to update to the latest versions.
ICSA-21-040-05Siemens TIA Administrator (Update A)2021-02-09icsa · cisa_csaf_otUS
The latest update for TIA Administrator, installed together with TIA Portal and PCS neo, fixes a privilege escalation vulnerability that could allow local users to escalate privileges and execute code as local SYSTEM user. Siemens has released updates for the affected products and recommends to update to the latest versions.

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 2021-02-09modified 2026-06-17

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+1382 more

references (9)

External citations — patches, advisories, analysis.

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