CVE-2023-32735

mediumpriority · track · 0EPSS 0.002 · 11 %ileDEEUNLRUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.21% (11th) EPSS
CVSS 6.5 · medium
Is it mine?
138 products
Check your exposure
Who says so?
7 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

A vulnerability has been identified in SIMATIC STEP 7 Safety V16 (All versions < V16 Update 7), SIMATIC STEP 7 Safety V17 (All versions < V17 Update 7), SIMATIC STEP 7 Safety V18 (All versions < V18 Update 2), SIMATIC STEP 7 V16 (All versions < V16 Update 7), SIMATIC STEP 7 V17 (All versions < V17 Update 7), SIMATIC STEP 7 V18 (All versions < V18 Update 2), SIMATIC WinCC Unified V16 (All versions < V16 Update 7), SIMATIC WinCC Unified V17 (All versions < V17 Update 7), SIMATIC WinCC Unified V18 (All versions < V18 Update 2), SIMATIC WinCC V16 (All versions < V16.7), SIMATIC WinCC V17 (All versions < V17.7), SIMATIC WinCC V18 (All versions < V18 Update 2), SIMOCODE ES V16 (All versions < V16 Update 7), SIMOCODE ES V17 (All versions < V17 Update 7), SIMOCODE ES V18 (All versions < V18 Update 2), SIMOTION SCOUT TIA V5.4 SP1 (All versions), SIMOTION SCOUT TIA V5.4 SP3 (All versions), SIMOTION SCOUT TIA V5.5 SP1 (All versions), SINAMICS Startdrive V16 (All versions), SINAMICS Startdrive V17 (All versions), SINAMICS Startdrive V18 (All versions), SIRIUS Safety ES V17 (All versions < V17 Update 7), SIRIUS Safety ES V18 (All versions < V18 Update 2), SIRIUS Soft Starter ES V17 (All versions < V17 Update 7), SIRIUS Soft Starter ES V18 (All versions < V18 Update 2), Soft Starter ES V16 (All versions < V16 Update 7), TIA Portal Cloud V3.0 (All versions < V18 Update 2). Affected applications do not properly restrict the .NET BinaryFormatter when deserializing hardware configuration profiles. This could allow an attacker to cause a type confusion and execute arbitrary code within the affected application. This is the same issue that exists for .NET BinaryFormatter https://docs.microsoft.com/en-us/visualstudio/code-quality/ca2300.

01

remediations

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

A vendor fix is available.

  • FixedSIMATIC STEP 7 Safety V16siemens_psirt

    Update to V16 Update 7 or later version

  • FixedSIMATIC STEP 7 Safety V17siemens_psirt

    Update to V17 Update 7 or later version

  • FixedSIMATIC STEP 7 Safety V18siemens_psirt

    Update to V18 Update 2 or later version

  • FixedSIMATIC STEP 7 V16siemens_psirt

    Update to V16 Update 7 or later version

  • FixedSIMATIC STEP 7 V17siemens_psirt

    Update to V17 Update 7 or later version

  • FixedSIMATIC STEP 7 V18siemens_psirt

    Update to V18 Update 2 or later version

  • FixedSIMATIC WinCC Unified V16siemens_psirt

    Update to V16 Update 7 or later version

  • FixedSIMATIC WinCC Unified V17siemens_psirt

    Update to V17 Update 7 or later version

  • FixedSIMATIC WinCC Unified V18siemens_psirt

    Update to V18 Update 2 or later version

  • FixedSIMATIC WinCC V16siemens_psirt

    Update to V16.7 or later version

  • FixedSIMATIC WinCC V17siemens_psirt

    Update to V17.7 or later version

  • FixedSIMATIC WinCC V18siemens_psirt

    Update to V18 Update 2 or later version

  • FixedSIMOCODE ES V16siemens_psirt

    Update to V16 Update 7 or later version

  • FixedSIMOCODE ES V17siemens_psirt

    Update to V17 Update 7 or later version

  • FixedSIMOCODE ES V18siemens_psirt

    Update to V18 Update 2 or later version

  • FixedSIRIUS Safety ES V17siemens_psirt

    Update to V17 Update 7 or later version

  • FixedSIRIUS Safety ES V18siemens_psirt

    Update to V18 Update 2 or later version

  • FixedSIRIUS Soft Starter ES V17siemens_psirt

    Update to V17 Update 7 or later version

  • FixedSIRIUS Soft Starter ES V18siemens_psirt

    Update to V18 Update 2 or later version

  • FixedSoft Starter ES V16siemens_psirt

    Update to V16 Update 7 or later version

  • FixedTIA Portal Cloud V3.0siemens_psirt

    Update to V18 Update 2 or later version

  • FixedSIMATIC STEP 7 Safety V16cisa_csaf_ot

    Update to V16 Update 7 or later version

  • FixedSIMATIC STEP 7 Safety V17cisa_csaf_ot

    Update to V17 Update 7 or later version

  • FixedSIMATIC STEP 7 Safety V18cisa_csaf_ot

    Update to V18 Update 2 or later version

  • FixedSIMATIC STEP 7 V16cisa_csaf_ot

    Update to V16 Update 7 or later version

  • FixedSIMATIC STEP 7 V17cisa_csaf_ot

    Update to V17 Update 7 or later version

  • FixedSIMATIC STEP 7 V18cisa_csaf_ot

    Update to V18 Update 2 or later version

  • FixedSIMATIC WinCC Unified V16cisa_csaf_ot

    Update to V16 Update 7 or later version

  • FixedSIMATIC WinCC Unified V17cisa_csaf_ot

    Update to V17 Update 7 or later version

  • FixedSIMATIC WinCC Unified V18cisa_csaf_ot

    Update to V18 Update 2 or later version

  • FixedSIMATIC WinCC V16cisa_csaf_ot

    Update to V16.7 or later version

  • FixedSIMATIC WinCC V17cisa_csaf_ot

    Update to V17.7 or later version

  • FixedSIMATIC WinCC V18cisa_csaf_ot

    Update to V18 Update 2 or later version

  • FixedSIMOCODE ES V16cisa_csaf_ot

    Update to V16 Update 7 or later version

  • FixedSIMOCODE ES V17cisa_csaf_ot

    Update to V17 Update 7 or later version

  • FixedSIMOCODE ES V18cisa_csaf_ot

    Update to V18 Update 2 or later version

  • FixedSIRIUS Safety ES V17cisa_csaf_ot

    Update to V17 Update 7 or later version

  • FixedSIRIUS Safety ES V18cisa_csaf_ot

    Update to V18 Update 2 or later version

  • FixedSIRIUS Soft Starter ES V17cisa_csaf_ot

    Update to V17 Update 7 or later version

  • FixedSIRIUS Soft Starter ES V18cisa_csaf_ot

    Update to V18 Update 2 or later version

  • FixedSoft Starter ES V16cisa_csaf_ot

    Update to V16 Update 7 or later version

  • FixedTIA Portal Cloud V3.0cisa_csaf_ot

    Update to V18 Update 2 or later version

  • MitigationSIMATIC STEP 7 Safety V16siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC STEP 7 Safety V17siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC STEP 7 Safety V18siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC STEP 7 V16siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC STEP 7 V17siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC STEP 7 V18siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC WinCC Unified V16siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC WinCC Unified V17siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC WinCC Unified V18siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC WinCC V16siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC WinCC V17siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC WinCC V18siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMOCODE ES V16siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMOCODE ES V17siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMOCODE ES V18siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMOTION SCOUT TIA V5.4 SP1siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMOTION SCOUT TIA V5.4 SP3siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMOTION SCOUT TIA V5.5 SP1siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSINAMICS Startdrive V16siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSINAMICS Startdrive V17siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSINAMICS Startdrive V18siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIRIUS Safety ES V17siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIRIUS Safety ES V18siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIRIUS Soft Starter ES V17siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIRIUS Soft Starter ES V18siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSoft Starter ES V16siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationTIA Portal Cloud V3.0siemens_psirt

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC STEP 7 Safety V16cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC STEP 7 Safety V17cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC STEP 7 Safety V18cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC STEP 7 V16cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC STEP 7 V17cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC STEP 7 V18cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC WinCC Unified V16cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC WinCC Unified V17cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC WinCC Unified V18cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC WinCC V16cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC WinCC V17cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMATIC WinCC V18cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMOCODE ES V16cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMOCODE ES V17cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMOCODE ES V18cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMOTION SCOUT TIA V5.4 SP1cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMOTION SCOUT TIA V5.4 SP3cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIMOTION SCOUT TIA V5.5 SP1cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSINAMICS Startdrive V16cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSINAMICS Startdrive V17cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSINAMICS Startdrive V18cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIRIUS Safety ES V17cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIRIUS Safety ES V18cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIRIUS Soft Starter ES V17cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSIRIUS Soft Starter ES V18cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationSoft Starter ES V16cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • MitigationTIA Portal Cloud V3.0cisa_csaf_ot

    Avoid opening untrusted files from unknown sources in affected products

  • No fix plannedSIMOTION SCOUT TIA V5.4 SP1siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMOTION SCOUT TIA V5.4 SP3siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMOTION SCOUT TIA V5.5 SP1siemens_psirt

    Currently no fix is planned

  • No fix plannedSINAMICS Startdrive V16siemens_psirt

    Currently no fix is planned

  • No fix plannedSINAMICS Startdrive V17siemens_psirt

    Currently no fix is planned

  • No fix plannedSINAMICS Startdrive V18siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMOTION SCOUT TIA V5.4 SP1cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMOTION SCOUT TIA V5.4 SP3cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMOTION SCOUT TIA V5.5 SP1cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSINAMICS Startdrive V16cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSINAMICS Startdrive V17cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSINAMICS Startdrive V18cisa_csaf_ot

    Currently no fix is planned

02

cvss

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

7.0
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4–7

v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:Hsecondary · productcert@siemens.com DEexploitability 0.6 · impact 5.9
v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE
v3.16.5mediumAV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · CISA US
v4.07highCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · productcert@siemens.com DE
v4.07highCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU
v4.04mediumCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)
03

ssvc

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

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USCWE-502USCWE-502USCWE-502USCWE-502US
05

affected products (138)

Products and version ranges known to be affected.

showing 20 of 138
06

advisories (4)

Vendor and ecosystem advisories describing this.

  • NCSC-2024-0282Kwetsbaarheden verholpen in Siemens ProductenNL2024-07-09csaf · ncsc_nlNL

    Siemens heeft kwetsbaarheden verholpen in diverse producten als Mendix, RUGGEDOM, SIMATIC, SINEMA, SIPROTEC en de Engineering Platforms voor diverse systemen.

  • SSA-779936SSA-779936: Catalog-Profile Deserialization Vulnerability in Siemens Engineering Platforms before V192024-07-09csaf · siemens_psirtDE

    Affected applications do not properly restrict the .NET BinaryFormatter when deserializing user-controllable input. This could allow an attacker to cause a type confusion and execute arbitrary code within the affected application. Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.

  • WID-SEC-W-2024-1572Siemens TIA Portal: Mehrere Schwachstellen ermöglichen CodeausführungDeutsch2024-07-09csaf · cert_bundDE

    Ein entfernter anonymer oder lokal privilegierter Angreifer kann mehrere Schwachstellen in Siemens TIA Portal ausnutzen, um beliebigen Code auszuführen.

  • ICSA-24-193-13Siemens TIA Portal, SIMATIC, and SIRIUS2024-07-09icsa · cisa_csaf_otUS

    Affected applications do not properly restrict the .NET BinaryFormatter when deserializing user-controllable input. This could allow an attacker to cause a type confusion and execute arbitrary code within the affected application. Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.

07

also known as (5)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducisa_csaf_otncsc_nlsiemens_psirtcert_bundNVDCVE.orgMITRE
published 2024-07-09modified 2026-06-17
09

references (4)

External citations — patches, advisories, analysis.

scry

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