Vulnerability · Published Feb 5, 2026 · Assigned by Mitsubishi
CVE-2025-15080Information Disclosure, Information Tampering, and Denial of Service (DoS) Vulnerability in Mitsubishi Electric proprietary protocol communication and SLMP communication for FA products
High 8.8
In plain English
A high-severity security flaw in MELSEC iQ-R Series R08PCPU from Mitsubishi Electric Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).
Official description
Improper Validation of Specified Quantity in Input vulnerability in Mitsubishi Electric MELSEC iQ-R Series R08PCPU, R16PCPU, R32PCPU, and R120PCPU allows an unauthenticated attacker to read device data or part of a control program from the affected product, write device data in the affected product, or cause a denial of service (DoS) condition on the affected product by sending a specially crafted packet containing a specific command to the affected product.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R08PCPU | Firmware versions "48" and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R16PCPU | Firmware versions "48" and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R32PCPU | Firmware versions "48" and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R120PCPU | Firmware versions "48" and prior |
Weakness: CWE-1284 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N
References
- https://jvn.jp/vu/JVNVU95093080/ government-resource
- https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-020_en.pdf vendor-advisory
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-036-02 government-resource