ICSA-20-324-05: Mitsubishi Electric R00/01/02CPU firmware Versions 19 and earlier vulnerability
Affected Software
10 affected components
Mitsubishi Electric R00/01/02CPU firmware Versions 19 and earlier
Mitsubishi Electric R04/08/16/32/120(EN)CPU firmware Versions 51 and earlier
Mitsubishi Electric R08/16/32/120SFCPU firmware Versions 22 and earlier
Mitsubishi Electric R08/16/32/120PCPU firmware Versions 25 and earlier
Mitsubishi Electric R08/16/32/120PSFCPU firmware Versions 06 and earlier
Mitsubishi Electric RJ71EN71 firmware Versions 47 and earlier
Mitsubishi Electric RJ71GF11-T2 firmware Versions 47 and earlier
Mitsubishi Electric RJ72GF15-T2 firmware Versions 07 and earlier
Mitsubishi Electric RJ71GP21-SX firmware Versions 47 and earlier
Mitsubishi Electric RJ71GP21S-SX firmware Versions 47 and earlier
Event History
Feb 23, 2026
Advisory Published
11:57 PM
Data Sourced
11:57 PM
Affected Software
Frequently Asked Questions
1
What is the severity of ICSA-20-324-05?
The severity of ICSA-20-324-05 is rated as critical due to the potential for remote code execution.
2
How do I fix ICSA-20-324-05?
To fix ICSA-20-324-05, upgrade the affected Mitsubishi Electric firmware to the latest version as recommended by the vendor.
3
What devices are impacted by ICSA-20-324-05?
ICSA-20-324-05 affects various Mitsubishi Electric R and RJ series CPUs and firmware versions as specified in the advisory.
4
Can ICSA-20-324-05 be exploited remotely?
Yes, ICSA-20-324-05 can be exploited remotely, which increases the risk of unauthorized access to affected systems.
5
What should organizations do if they cannot immediately patch ICSA-20-324-05?
If immediate patching is not feasible for ICSA-20-324-05, organizations should implement network segmentation and restrict access to affected systems.