PT-2026-5882 · Mitsubishi · Melsec Iq-R Series R32Pcpu+3

Published 2026-02-05 · Updated 2026-02-06 · CVE-2025-15080

Positive Technologies (AI Summary)

CVSS v4.0

8.8

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions Mitsubishi Electric MELSEC iQ-R Series R08PCPU Mitsubishi Electric MELSEC iQ-R Series R16PCPU Mitsubishi Electric MELSEC iQ-R Series R32PCPU Mitsubishi Electric MELSEC iQ-R Series R120PCPU

Description An improper validation of specified quantity in input exists in Mitsubishi Electric MELSEC iQ-R Series products. This allows an unauthenticated attacker to read device data or a portion of a control program, write device data, or cause a denial of service. The issue is triggered by sending a specially crafted packet containing a specific command to the affected product.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-1284

Related Identifiers

CVE-2025-15080

Affected Products

Melsec Iq-R Series R08Pcpu

Melsec Iq-R Series R120Pcpu

Melsec Iq-R Series R16Pcpu

Melsec Iq-R Series R32Pcpu

References · 7

• https://mitsubishielectric.com/psirt/vulnerability/pdf/2025-020_en.pdf · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-15080 · Security Note
• https://t.me/cveNotify/150950 · Telegram Post
• https://t.me/cveNotify/151099 · Telegram Post
• https://jvn.jp/vu/JVNVU95093080 · Note
• https://t.me/CVEtracker/43800 · Telegram Post
• https://cisa.gov/news-events/ics-advisories/icsa-26-036-02 · Note