CVE-2022-21198
mediumpriority · track · 26EPSS 0.002 · 4 %ileDEEUUSEPSS · scored 2026-10-27
Time-of-check time-of-use race condition in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedSIMATIC Field PG M5siemens_psirt
Update to V22.01.11 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408/ - FixedSIMATIC Field PG M6siemens_psirt
Update to V26.01.11 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408/ - FixedSIMATIC IPC BX-39Asiemens_psirt
Update to V29.01.03 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408/ - FixedSIMATIC IPC PX-39Asiemens_psirt
Update to V29.01.03 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408/ - FixedSIMATIC IPC PX-39A PROsiemens_psirt
Update to V29.01.03 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408/ - FixedSIMATIC IPC427Esiemens_psirt
Update to V21.01.19 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408/ - FixedSIMATIC IPC477Esiemens_psirt
Update to V21.01.19 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408/ - FixedSIMATIC IPC477E Prosiemens_psirt
Update to V21.01.19 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408/ - FixedSIMATIC IPC627Esiemens_psirt
Update to V25.02.14 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408/ - FixedSIMATIC IPC647Esiemens_psirt
Update to V25.02.14 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408/ - FixedSIMATIC IPC677Esiemens_psirt
Update to V25.02.14 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408/ - FixedSIMATIC IPC847Esiemens_psirt
Update to V25.02.14 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408/ - FixedSIPLUS IPC427Esiemens_psirt
Update to V21.01.19 or later version
https://support.industry.siemens.com/cs/ww/en/view/109763408/ - FixedSIMATIC Field PG M5cisa_csaf_ot
Update to V22.01.11 or later version
- FixedSIMATIC Field PG M6cisa_csaf_ot
Update to V26.01.11 or later version
- FixedSIMATIC IPC BX-39Acisa_csaf_ot
Update to V29.01.03 or later version
- FixedSIMATIC IPC PX-39Acisa_csaf_ot
Update to V29.01.03 or later version
- FixedSIMATIC IPC PX-39A PROcisa_csaf_ot
Update to V29.01.03 or later version
- FixedSIMATIC IPC427Ecisa_csaf_ot
Update to V21.01.19 or later version
- FixedSIMATIC IPC477Ecisa_csaf_ot
Update to V21.01.19 or later version
- FixedSIMATIC IPC477E Procisa_csaf_ot
Update to V21.01.19 or later version
- FixedSIMATIC IPC627Ecisa_csaf_ot
Update to V25.02.14 or later version
- FixedSIMATIC IPC647Ecisa_csaf_ot
Update to V25.02.14 or later version
- FixedSIMATIC IPC677Ecisa_csaf_ot
Update to V25.02.14 or later version
- FixedSIMATIC IPC847Ecisa_csaf_ot
Update to V25.02.14 or later version
- FixedSIPLUS IPC427Ecisa_csaf_ot
Update to V21.01.19 or later version
- MitigationSIMATIC Field PG M5siemens_psirt
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- MitigationSIMATIC Field PG M6siemens_psirt
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- MitigationSIMATIC IPC BX-39Asiemens_psirt
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- MitigationSIMATIC IPC PX-39Asiemens_psirt
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- MitigationSIMATIC IPC PX-39A PROsiemens_psirt
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- MitigationSIMATIC IPC427Esiemens_psirt
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- MitigationSIMATIC IPC477Esiemens_psirt
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- MitigationSIMATIC IPC477E Prosiemens_psirt
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- MitigationSIMATIC IPC627Esiemens_psirt
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- MitigationSIMATIC IPC647Esiemens_psirt
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- MitigationSIMATIC IPC677Esiemens_psirt
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- MitigationSIMATIC IPC847Esiemens_psirt
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- MitigationSIMATIC ITP1000siemens_psirt
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- MitigationSIPLUS IPC427Esiemens_psirt
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- WorkaroundSIMATIC Field PG M5cisa_csaf_ot
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- WorkaroundSIMATIC Field PG M6cisa_csaf_ot
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- WorkaroundSIMATIC IPC BX-39Acisa_csaf_ot
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- WorkaroundSIMATIC IPC PX-39Acisa_csaf_ot
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- WorkaroundSIMATIC IPC PX-39A PROcisa_csaf_ot
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- WorkaroundSIMATIC IPC427Ecisa_csaf_ot
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- WorkaroundSIMATIC IPC477Ecisa_csaf_ot
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- WorkaroundSIMATIC IPC477E Procisa_csaf_ot
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- WorkaroundSIMATIC IPC627Ecisa_csaf_ot
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- WorkaroundSIMATIC IPC647Ecisa_csaf_ot
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- WorkaroundSIMATIC IPC677Ecisa_csaf_ot
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- WorkaroundSIMATIC IPC847Ecisa_csaf_ot
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- WorkaroundSIMATIC ITP1000cisa_csaf_ot
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- WorkaroundSIPLUS IPC427Ecisa_csaf_ot
As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.
- No fix availableSIMATIC ITP1000cisa_csaf_ot
Currently no fix is available
- No fix plannedSIMATIC ITP1000siemens_psirt
Currently no fix is planned
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.9–7.9
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (509)
Products and version ranges known to be affected.
advisories (3)
Vendor and ecosystem advisories describing this.
- SSA-686975SSA-686975: IPU 2022.3 Vulnerabilities in Siemens Industrial Products using Intel CPUs2023-02-14csaf · siemens_psirtDE
Intel has published information on vulnerabilities in Intel products in November 2022. This advisory lists the related Siemens Industrial products affected by these vulnerabilities that can be patched by applying the corresponding BIOS update ("2022.3 IPU – BIOS Advisory" Intel-SA-00688). Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fix versions and recommends specific countermeasures for products where fixes are not, or not yet available.
- WID-SEC-W-2022-1984Intel BIOS: Mehrere Schwachstellen ermöglichen PrivilegieneskalationDeutsch2022-11-08csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen im Intel BIOS ausnutzen, um seine Privilegien zu erhöhen.
- ICSA-23-047-09Siemens SIMATIC Industrial Products2023-02-14icsa · cisa_csaf_otUS
Intel has published information on vulnerabilities in Intel products in November 2022. This advisory lists the related Siemens Industrial products affected by these vulnerabilities that can be patched by applying the corresponding BIOS update ("2022.3 IPU – BIOS Advisory" Intel-SA-00688). Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fix versions and recommends specific countermeasures for products where fixes are not, or not yet available.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2022-21198/cnnvd
- https://vigilance.fr/vulnerability/Intel-Processors-two-vulnerabilities-via-BIOS-Firmware-39878cnnvd
- https://www.auscert.org.au/bulletins/ESB-2022.5835cnnvd
- https://www.auscert.org.au/bulletins/ESB-2023.0968cnnvd
- https://www.auscert.org.au/bulletins/ESB-2023.1209cnnvd
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00688.htmlcnnvd
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00688.htmlenisa_euvd
- https://cert-portal.siemens.com/productcert/html/ssa-686975.htmlnvd
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