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CVE-2025-40759: SIMATIC S7-PLCSIM V17 0 to before *; +32 more affected products

CVE-2025-40759. CVSS 3.1 base score 7.8 (HIGH, Vendor/CNA). EPSS 0.00185 (percentile 0.0743), scored 12-Oct-2026.

Affected technology

SIMATIC S7-PLCSIM V17 · 0 to before *
Siemens

SIMATIC STEP 7 V17 · 0 to before V17 Update 9
Siemens

SIMATIC STEP 7 V18 · 0 to before V18 Update 6
Siemens

SIMATIC STEP 7 V19 · 0 to before V19 Update 4
Siemens

SIMATIC STEP 7 V20 · 0 to before V20 Update 4
Siemens

SIMATIC WinCC V17 · 0 to before V17 Update 9
Siemens

SIMATIC WinCC V18 · 0 to before V18 Update 6
Siemens

SIMATIC WinCC V19 · 0 to before V19 Update 4
Siemens

SIMATIC WinCC V20 · 0 to before V20 Update 4
Siemens

SIMOCODE ES V17 · 0 to before *
Siemens

SIMOCODE ES V18 · 0 to before *
Siemens

SIMOCODE ES V19 · 0 to before *
Siemens

SIMOCODE ES V20 · 0 to before *
Siemens

SIMOTION SCOUT TIA V5.4 · 0 to before *
Siemens

SIMOTION SCOUT TIA V5.5 · 0 to before *
Siemens

SIMOTION SCOUT TIA V5.6 · 0 to before V5.6 SP1 HF7
Siemens

SIMOTION SCOUT TIA V5.7 · 0 to before *
Siemens

SINAMICS Startdrive V17 · 0 to before *
Siemens

SINAMICS Startdrive V18 · 0 to before *
Siemens

SINAMICS Startdrive V19 · 0 to before *
Siemens

SINAMICS Startdrive V20 · 0 to before *
Siemens

SIRIUS Safety ES V17 (TIA Portal) · 0 to before *
Siemens

SIRIUS Safety ES V18 (TIA Portal) · 0 to before *
Siemens

SIRIUS Safety ES V19 (TIA Portal) · 0 to before *
Siemens

SIRIUS Safety ES V20 (TIA Portal) · 0 to before *
Siemens

SIRIUS Soft Starter ES V17 (TIA Portal) · 0 to before *
Siemens

SIRIUS Soft Starter ES V18 (TIA Portal) · 0 to before *
Siemens

SIRIUS Soft Starter ES V19 (TIA Portal) · 0 to before *
Siemens

SIRIUS Soft Starter ES V20 (TIA Portal) · 0 to before *
Siemens

TIA Portal Cloud V17 · 0 to before *
Siemens

TIA Portal Cloud V18 · 0 to before *
Siemens

TIA Portal Cloud V19 · 0 to before V5.2.1.1
Siemens

TIA Portal Cloud V20 · 0 to before V5.2.2.2
Siemens

Description’s affected range: versions), SIMATIC STEP 7 V17 (All versions < V17 Update 9), SIMATIC STEP 7 V18 (All versions < V18 Update 6), SIMATIC STEP 7 V19 (All versions < V19 Upd

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Local · No privileges required · Passive user interaction

What an attacker can do

An attacker could cause a type confusion and execute arbitrary code within the affected application. Vendor/CNA’s CVSS 4.0 assessment (base score 8.5/10) rates confidentiality, integrity and availability impact as high.

Published

CWE
CWE-502
CCR priority
31.2 /100 (P4)
CVSS 3.1
7.8 /10 · CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · Vendor/CNA
EPSS
0.00185 · percentile 0.0743 · 2026-10-12
KEV
no

Provenance

Stable permalink: https://cybercodered.org/item/cve-cve-2025-40759.html