CVE-2020-8745

mediumpriority · track · 27EPSS 0.004 · 31 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.38% (31st) EPSS

CVSS 4.6 · medium

Is it mine?

96 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-24

Insufficient control flow management in subsystem for Intel(R) CSME versions before 11.8.80, 11.12.80, 11.22.80, 12.0.70, 13.0.40, 13.30.10, 14.0.45 and 14.5.25 , Intel(R) TXE versions before 3.1.80 and 4.0.30 may allow an unauthenticated user to potentially enable escalation of privilege via physical access.

remediations

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

A vendor fix is available.

FixedSIMATIC Drive Controller familysiemens_psirt
Update BIOS to V05.00.01.00 or later version The update can be obtained from your local Siemens account manager.
FixedSIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)siemens_psirt
Update BIOS to V0209_0105 or later version
https://support.industry.siemens.com/cs/ww/en/view/109743969/
FixedSIMATIC Field PG M5siemens_psirt
Update BIOS to V22.01.08 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC Field PG M6siemens_psirt
Update BIOS to V26.01.08 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC127Esiemens_psirt
Update BIOS to V27.01.05 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC427E (incl. SIPLUS variants)siemens_psirt
Update BIOS to V21.01.15 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC477Esiemens_psirt
Update BIOS to V21.01.15 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC477E Prosiemens_psirt
Update BIOS to V21.01.15 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC527Gsiemens_psirt
Update BIOS to V1.4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC627Esiemens_psirt
Update BIOS to V25.02.08 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC647Esiemens_psirt
Update BIOS to V25.02.08 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC677Esiemens_psirt
Update BIOS to V25.02.08 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC847Esiemens_psirt
Update BIOS to V25.02.08 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC ITP1000siemens_psirt
Update BIOS to V23.01.08 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSINUMERIK 828D HW PU.4siemens_psirt
Update BIOS to V08.00.00.00 or later version SINUMERIK software can be obtained from your local Siemens account manager.
FixedSINUMERIK MC MCU 1720siemens_psirt
Update BIOS to V05.00.00.00 or later version SINUMERIK software can be obtained from your local Siemens account manager.
FixedSINUMERIK ONE / SINUMERIK 840D sl Handheld Terminal HT 10siemens_psirt
Update BIOS to V08.00.00.00 or later version SINUMERIK software can be obtained from your local Siemens account manager.
FixedSINUMERIK ONE NCU 1740siemens_psirt
Update BIOS to V04.00.00.00 or later version SINUMERIK software can be obtained from your local Siemens account manager.
FixedSINUMERIK ONE PPU 1740siemens_psirt
Update BIOS to V06.00.00.00 or later version SINUMERIK software can be obtained from your local Siemens account manager.
FixedSIMATIC Drive Controller familycisa_csaf_ot
Update BIOS to V05.00.01.00 or later version The update can be obtained from your local Siemens account manager.
FixedSIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)cisa_csaf_ot
Update BIOS to V0209_0105 or later version
https://support.industry.siemens.com/cs/ww/en/view/109743969/
FixedSIMATIC Field PG M5cisa_csaf_ot
Update BIOS to V22.01.08 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC Field PG M6cisa_csaf_ot
Update BIOS to V26.01.08 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC127Ecisa_csaf_ot
Update BIOS to V27.01.05 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC427E (incl. SIPLUS variants)cisa_csaf_ot
Update BIOS to V21.01.15 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC477Ecisa_csaf_ot
Update BIOS to V21.01.15 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC477E Procisa_csaf_ot
Update BIOS to V21.01.15 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC527Gcisa_csaf_ot
Update BIOS to V1.4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC627Ecisa_csaf_ot
Update BIOS to V25.02.08 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC647Ecisa_csaf_ot
Update BIOS to V25.02.08 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC677Ecisa_csaf_ot
Update BIOS to V25.02.08 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC IPC847Ecisa_csaf_ot
Update BIOS to V25.02.08 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSIMATIC ITP1000cisa_csaf_ot
Update BIOS to V23.01.08 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408
FixedSINUMERIK 828D HW PU.4cisa_csaf_ot
Update BIOS to V08.00.00.00 or later version SINUMERIK software can be obtained from your local Siemens account manager.
FixedSINUMERIK MC MCU 1720cisa_csaf_ot
Update BIOS to V05.00.00.00 or later version SINUMERIK software can be obtained from your local Siemens account manager.
FixedSINUMERIK ONE / SINUMERIK 840D sl Handheld Terminal HT 10cisa_csaf_ot
Update BIOS to V08.00.00.00 or later version SINUMERIK software can be obtained from your local Siemens account manager.
FixedSINUMERIK ONE NCU 1740cisa_csaf_ot
Update BIOS to V04.00.00.00 or later version SINUMERIK software can be obtained from your local Siemens account manager.
FixedSINUMERIK ONE PPU 1740cisa_csaf_ot
Update BIOS to V06.00.00.00 or later version SINUMERIK software can be obtained from your local Siemens account manager.
MitigationSIMATIC Drive Controller familysiemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)siemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC Field PG M5siemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC Field PG M6siemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC127Esiemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC427E (incl. SIPLUS variants)siemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC477Esiemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC477E Prosiemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC527Gsiemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC627Esiemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC647Esiemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC677Esiemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC847Esiemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC ITP1000siemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSINUMERIK 828D HW PU.4siemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSINUMERIK MC MCU 1720siemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSINUMERIK ONE / SINUMERIK 840D sl Handheld Terminal HT 10siemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSINUMERIK ONE NCU 1740siemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSINUMERIK ONE PPU 1740siemens_psirt
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC Drive Controller familycisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)cisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC Field PG M5cisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC Field PG M6cisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC127Ecisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC427E (incl. SIPLUS variants)cisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC477Ecisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC477E Procisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC527Gcisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC627Ecisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC647Ecisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC677Ecisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC IPC847Ecisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSIMATIC ITP1000cisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSINUMERIK 828D HW PU.4cisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSINUMERIK MC MCU 1720cisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSINUMERIK ONE / SINUMERIK 840D sl Handheld Terminal HT 10cisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSINUMERIK ONE NCU 1740cisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
MitigationSINUMERIK ONE PPU 1740cisa_csaf_ot
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity

cvss

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

7.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.6–7.3

v2.04.6mediumAV:L/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 3.9 · impact 6.4

v3.16.8mediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 0.9 · impact 5.9

v3.16.8mediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · CISA US

v3.17.3highAV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.16.8mediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.16.2mediumCVSS:3.1/AV:P/AC:L/PR:N/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-269USCWE-269USCWE-670US

affected products (96)

Products and version ranges known to be affected.

SIMATIC Drive Controller familyall versionscisa_csaf_otUS
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)all versionscisa_csaf_otUS
SIMATIC Field PG M5all versionscisa_csaf_otUS
SIMATIC Field PG M6all versionscisa_csaf_otUS
SIMATIC IPC127Eall versionscisa_csaf_otUS
SIMATIC IPC427E (incl. SIPLUS variants)all versionscisa_csaf_otUS
SIMATIC IPC477Eall versionscisa_csaf_otUS
SIMATIC IPC477E Proall versionscisa_csaf_otUS
SIMATIC IPC527Gall versionscisa_csaf_otUS
SIMATIC IPC627Eall versionscisa_csaf_otUS
SIMATIC IPC647Eall versionscisa_csaf_otUS
SIMATIC IPC677Eall versionscisa_csaf_otUS
SIMATIC IPC847Eall versionscisa_csaf_otUS
SIMATIC ITP1000all versionscisa_csaf_otUS
SINUMERIK 828D HW PU.4all versionscisa_csaf_otUS
SINUMERIK MC MCU 1720all versionscisa_csaf_otUS
SINUMERIK ONE / SINUMERIK 840D sl Handheld Terminal HT 10all versionscisa_csaf_otUS
SINUMERIK ONE NCU 1740all versionscisa_csaf_otUS
SINUMERIK ONE PPU 1740all versionscisa_csaf_otUS
Siemens SIMATIC Drive Controller family< V05.00.01.00cisa_csaf_otUS

showing 20 of 96

advisories (2)

Vendor and ecosystem advisories describing this.

SSA-678983SSA-678983: Vulnerabilities in Industrial PCs and CNC devices using Intel CPUs (November 2020)2021-05-11csaf · siemens_psirtDE
Intel has published information on vulnerabilities in Intel products in November 2020. This advisory lists the Siemens IPC related products, that are affected by these vulnerabilities. In this advisory we take a representative CVE from each advisory: - “Intel CSME, SPS, TXE, AMT and DAL Advisory” Intel-SA-00391 is represented by CVE-2020-8745 - “Intel RAPL Interface Advisory” Intel-SA-00389 is represented by CVE-2020-8694 - “Intel Processor Advisory” Intel-SA-00381 is represented by CVE-2020-8698, and - “BIOS Advisory” Intel-SA-00358 is represented by CVE-2020-0590. Siemens has released updates for the affected products and recommends to update to the latest versions.
ICSA-22-132-05Siemens Industrial PCs and CNC devices2021-05-11icsa · cisa_csaf_otUS
Intel has published information on vulnerabilities in Intel products in November 2020. This advisory lists the Siemens IPC related products, that are affected by these vulnerabilities. In this advisory we take a representative CVE from each advisory: - “Intel CSME, SPS, TXE, AMT and DAL Advisory” Intel-SA-00391 is represented by CVE-2020-8745 - “Intel RAPL Interface Advisory” Intel-SA-00389 is represented by CVE-2020-8694 - “Intel Processor Advisory” Intel-SA-00381 is represented by CVE-2020-8698, and - “BIOS Advisory” Intel-SA-00358 is represented by CVE-2020-0590. Siemens has released updates for the affected products and recommends to update to the latest versions.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot siemens_psirt NVD CVE.org MITRE

published 2020-11-12modified 2026-06-17

references (19)

External citations — patches, advisories, analysis.

scry

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