CVE-2025-15080
Unauthenticated read/write and DoS on MELSEC iQ-R PLCs via crafted packet.
Is CVE-2025-15080 being exploited?
Not confirmed. CVE-2025-15080 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.56% probability of exploitation in the next 30 days.
How severe is CVE-2025-15080?
CVE-2025-15080 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2025-15080?
Not known from our data. No patch reference has been recorded for CVE-2025-15080, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2025-15080 affect?
CVE-2025-15080 affects Mitsubishi Electric MELSEC iQ-R Series PLCs (R08PCPU, R16PCPU, R32PCPU, R120PCPU). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2025-15080?
Monitor traffic; segment PLC network; restrict PLC access; patch when available.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Reads/writes device data and DoS on MELSEC iQ-R PLCs via crafted packets without authentication, risking control disruption.
Monitor only
- affectedFirmware versions "48" and prior
- affectedFirmware versions "48" and prior
- affectedFirmware versions "48" and prior
- affectedFirmware versions "48" and prior
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.