ICSA-21-334-02: Mitsubishi electric melsec iq-r series r00/01/02cpu vulnerability
Affected Software
18 affected components
: Mitsubishi Electric MELSEC iQ-R Series R00/01/02CPU: Firmware Versions 24 and prior
: Mitsubishi Electric MELSEC iQ-R Series R04/08/16/32/120(EN)CPU: Firmware Versions 57 and prior
: Mitsubishi Electric MELSEC iQ-R Series R08/16/32/120SFCPU: Firmware Versions 26 and prior
: Mitsubishi Electric MELSEC iQ-R Series R08/16/32/120PCPU: Firmware Versions 29 and prior
: Mitsubishi Electric MELSEC iQ-R Series R08/16/32/120PSFCPU: Firmware Versions 08 and prior
: Mitsubishi Electric MELSEC iQ-R Series R16/32/64MTCPU: Operating system software Versions 23 and prior
: Mitsubishi Electric MELSEC iQ-R Series R12CCPU-V: Firmware Versions 16 and prior
: Mitsubishi Electric MELSEC Q Series Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU: The first 5 digits of serial No. 23121 and prior
: Mitsubishi Electric MELSEC Q Series Q03/04/06/13/26UDVCPU: The first 5 digits of serial No. 23071 and prior
: Mitsubishi Electric MELSEC Q Series Q04/06/13/26UDPVCPU: The first 5 digits of serial No. 23071 and prior
: Mitsubishi Electric MELSEC Q Series Q12DCCPU-V, Q24DHCCPU-V(G), Q24/26DHCCPU-LS: The first 5 digits of serial No. 24031 and prior
: Mitsubishi Electric MELSEC Q Series MR-MQ100: Operating system software version F and prior
: Mitsubishi Electric MELSEC Q Series Q172/173DCPU-S1: Operating system software version W and prior
: Mitsubishi Electric MELSEC Q Series Q172/173DSCPU: Operating system software version Y and prior
: Mitsubishi Electric MELSEC Q Series Q170MCPU: Operating system software version W and prior
: Mitsubishi Electric MELSEC Q Series Q170MSCPU(-S1): Operating system software version Y and prior
: Mitsubishi Electric MELSEC L Series L02/06/26CPU(-P), L26CPU-(P)BT: The first 5 digits of serial No. 23121 and prior
: Mitsubishi Electric MELIPC Series MI5122-VW: Firmware Versions 05 and prior
Event History
Mar 25, 2025
Advisory Published
10:08 AM
Frequently Asked Questions
1
What is the severity of ICSA-21-334-02?
ICSA-21-334-02 has been rated as critical due to potential exploitation that could result in severe operational disruption.
2
How do I fix ICSA-21-334-02?
To address ICSA-21-334-02, you should update to the latest firmware version provided by Mitsubishi Electric for the affected MELSEC iQ-R and Q Series products.
3
What products are affected by ICSA-21-334-02?
ICSA-21-334-02 affects various Mitsubishi Electric MELSEC iQ-R Series and Q Series CPUs, specifically firmware versions listed as vulnerable.
4
Is ICSA-21-334-02 being exploited in the wild?
As of the latest reports, there is no confirmed active exploitation of ICSA-21-334-02, but organizations are advised to take precautionary measures.
5
What are the potential impacts of ICSA-21-334-02?
The potential impacts of ICSA-21-334-02 include unauthorized access, control over critical systems, and disruption of operations.