CVE-2026-13584
Information tampering and Denial-of-service (DoS) vulnerability in CC-Link IE TSN communication protocol
No known exploitation. EPSS puts it in the 8th percentile. No fix published yet.
What to do
No fixed build or workaround is published yet. Limit exposure and watch for a patch.
What it is
From the CVE record
Successful exploitation of this vulnerability could allow an attacker with access to the same network segment to tamper with communication data in the affected product by sending specially crafted packets under specific timing conditions. This could allow the attacker to cause a denial-of-service (DoS) condition in the affected product by interfering with its control function or causing it to operate incorrectly.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.2% chance of exploitation activity in the next 30 days, which ranks it in the 8th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
7 events over 50 days, from the signal feeds we watch.
- Record updated
- Record updated
- Publishedweakness classified, record updated, record updated, record updated
Affected products
- MELSEC MX Controller MX-R model MXR300-16ICS / OT / IoT / plc-scada-hmi
- MELSEC MX Controller MX-R model MXR300-32ICS / OT / IoT / plc-scada-hmi
- MELSEC MX Controller MX-R model MXR300-64ICS / OT / IoT / plc-scada-hmi
- MELSEC MX Controller MX-R model MXR500-128ICS / OT / IoT / plc-scada-hmi
- MELSEC MX Controller MX-R model MXR500-256ICS / OT / IoT / plc-scada-hmi
- MELSEC MX Controller MX-F model MXF100-8-N32ICS / OT / IoT / plc-scada-hmi
- MELSEC MX Controller MX-F model MXF100-8-P32ICS / OT / IoT / plc-scada-hmi
- MELSEC MX Controller MX-F model MXF100-16-N32ICS / OT / IoT / plc-scada-hmi
And 112 more affected products. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
Scored 7.1 by csaf.
How it is reached
- Attack Vector AdjacentRequires access to the local network (e.g. same Wi-Fi, Bluetooth)
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality NoneNo confidentiality impact
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability LowReduced performance or intermittent disruption of service
Weaknesses
Sources
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