CVE-2020-5594 Information disclosure in MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules
Attackers can intercept sensitive information transmitted in cleartext between Mitsubishi PLC CPU modules and engineering software.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-5594?
CVE-2020-5594 is a critical vulnerability in Mitsubishi Electric Corporation MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules, published on 23 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Mitsubishi Electric MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules all versions contain a vulnerability that allows cleartext transmission of sensitive information between CPU modules and GX Works3 and/or GX Works2 via unspecified vectors.
Weakness: CWE-319
Which versions are affected by CVE-2020-5594?
It affects 5 products.
Products include Mitsubishielectric Melsec-Fx Firmware, Mitsubishielectric Melsec-L Firmware, Mitsubishielectric Melsec-Q Firmware, Mitsubishielectric Melsec Iq-F Firmware, Mitsubishielectric Melsec Iq-R Firmware.
How do I fix CVE-2020-5594?
No fix has been published for CVE-2020-5594 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-5594 being exploited?
There is no known exploitation of CVE-2020-5594 in the wild and no public exploit code.
Sources
Also known as GHSA-2vf3-pgp6-m4w5.