CVE-2021-20599
First published: Thu Oct 14 2021(Updated: )
Cleartext transmission of sensitive information vulnerability in MELSEC iQ-R series Safety CPU R08/16/32/120SFCPU firmware versions "26" and prior and MELSEC iQ-R series SIL2 Process CPU R08/16/32/120PSFCPU all versions allows a remote unauthenticated attacker to login to a target CPU module by obtaining credentials other than password.
Credit: Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| Mitsubishi Electric R08SFCpu | ||
| Mitsubishi Electric R08SFCpu | ||
| All of | ||
| Mitsubishi Electric R16SFCpu Firmware | ||
| Mitsubishi Electric R16SFCpu Firmware | ||
| All of | ||
| Mitsubishi Electric R32SFCpu | ||
| Mitsubishielectric R32sfcpu Firmware | ||
| All of | ||
| Mitsubishi Electric R120SFCPU | ||
| Mitsubishielectric R120sfcpu Firmware | ||
| All of | ||
| Mitsubishi Electric R08PSFCPU | ||
| Mitsubishi Electric R08PSFCPU | ||
| All of | ||
| Mitsubishi Electric R16SFCpu Firmware | ||
| Mitsubishielectric R16psfcpu Firmware | ||
| All of | ||
| Mitsubishi Electric R32 PSF CPU | ||
| Mitsubishielectric R32psfcpu Firmware | ||
| All of | ||
| Mitsubishielectric R120psfcpu Firmware | ||
| Mitsubishi Electric R120PSFCPU | ||
| Mitsubishi Electric R08SFCpu | ||
| Mitsubishi Electric R08SFCpu | ||
| Mitsubishi Electric R16SFCpu Firmware | ||
| Mitsubishi Electric R16SFCpu Firmware | ||
| Mitsubishi Electric R32SFCpu | ||
| Mitsubishielectric R32sfcpu Firmware | ||
| Mitsubishi Electric R120SFCPU | ||
| Mitsubishielectric R120sfcpu Firmware | ||
| Mitsubishi Electric R08PSFCPU | ||
| Mitsubishi Electric R08PSFCPU | ||
| Mitsubishi Electric R16SFCpu Firmware | ||
| Mitsubishielectric R16psfcpu Firmware | ||
| Mitsubishi Electric R32 PSF CPU | ||
| Mitsubishielectric R32psfcpu Firmware | ||
| Mitsubishielectric R120psfcpu Firmware | ||
| Mitsubishi Electric R120PSFCPU |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-20599?
The severity of CVE-2021-20599 is high with a severity value of 7.5.
How does CVE-2021-20599 affect the MELSEC iQ-R series Safety CPU?
CVE-2021-20599 allows a remote unauthenticated attacker to login to a target CPU module by obtaining sensitive information through cleartext transmission.
Which firmware versions of MELSEC iQ-R series Safety CPU are affected by CVE-2021-20599?
CVE-2021-20599 affects MELSEC iQ-R series Safety CPU R08/16/32/120SFCPU firmware versions "26" and prior.
Is there a fix available for CVE-2021-20599?
Yes, a fix is available for CVE-2021-20599. Refer to the vendor's advisory for more information.
Where can I find more information about CVE-2021-20599?
More information about CVE-2021-20599 can be found in the references provided by JVN, CISA, and Mitsubishi Electric.
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- source/MITRE
- agent/last-modified-date
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- vendor/mitsubishielectric
- canonical/mitsubishi electric r08sfcpu
- canonical/mitsubishi electric r16sfcpu firmware
- canonical/mitsubishi electric r32sfcpu
- canonical/mitsubishielectric r32sfcpu firmware
- canonical/mitsubishi electric r120sfcpu
- canonical/mitsubishielectric r120sfcpu firmware
- canonical/mitsubishi electric r08psfcpu
- canonical/mitsubishielectric r16psfcpu firmware
- canonical/mitsubishi electric r32 psf cpu
- canonical/mitsubishielectric r32psfcpu firmware
- canonical/mitsubishielectric r120psfcpu firmware
- canonical/mitsubishi electric r120psfcpu