CVE-2022-45147

highpriority · track · 0EPSS 0.002 · 13 %ileDEEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.23% (13th) EPSS
CVSS 7.8 · high
Is it mine?
20 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

A vulnerability has been identified in SIMATIC PCS neo V4.0 (All versions), SIMATIC STEP 7 V16 (All versions), SIMATIC STEP 7 V17 (All versions), SIMATIC STEP 7 V18 (All versions < V18 Update 2). 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. 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 V18siemens_psirt

    Update to V18 Update 2 or later version

  • FixedSIMATIC STEP 7 V18cisa_csaf_ot

    Update to V18 Update 2 or later version

  • MitigationSIMATIC PCS neo V4.0siemens_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 PCS neo V4.0cisa_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

  • No fix plannedSIMATIC PCS neo V4.0siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC STEP 7 V16siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC STEP 7 V17siemens_psirt

    Currently no fix is planned

  • No fix plannedSIMATIC PCS neo V4.0cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC STEP 7 V16cisa_csaf_ot

    Currently no fix is planned

  • No fix plannedSIMATIC STEP 7 V17cisa_csaf_ot

    Currently no fix is planned

02

cvss

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

8.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.9–8.5

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · productcert@siemens.com DEexploitability 1.8 · impact 5.9
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE
v3.17.8highAV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · CISA US
v4.08.5highCVSS:4.0/AV:L/AC:L/AT:N/PR:N/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
v4.08.5highCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU
v4.05.9mediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/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-502US
05

affected products (20)

Products and version ranges known to be affected.

06

advisories (3)

Vendor and ecosystem advisories describing this.

  • SSA-825651SSA-825651: Deserialization Vulnerability in SIMATIC STEP 7 (TIA Portal) before V18 Update 22024-07-09csaf · 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 a new version for SIMATIC STEP 7 (TIA Portal) V18 and recommends to update to the latest version. 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-24-193-17Siemens SIMATIC STEP 7 (TIA Portal)2024-07-09icsa · 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 a new version for SIMATIC STEP 7 (TIA Portal) V18 and recommends to update to the latest version. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.

07

also known as (6)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

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

references (5)

External citations — patches, advisories, analysis.

scry

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