CVE-2021-20591
Estado: ModificadaAlta (7.5)—
Uncontrolled Resource Consumption vulnerability in Mitsubishi Electric MELSEC iQ-R series CPU modules (R00/01/02CPU all versions, R04/08/16/32/120(EN)CPU all versions, R08/16/32/120SFCPU all versions, R08/16/32/120PCPU all versions, R08/16/32/120PSFCPU all versions) allows a remote unauthenticated attacker to prevent legitimate clients from connecting to the MELSOFT transmission port (TCP/IP) by not closing a connection properly, which may lead to a denial of service (DoS) condition.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.50%
- Percentil entre todas las CVEs puntuadas: 73
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (20)
Mitsubishielectric — R00cpu FirmwareMitsubishielectric — R01cpu FirmwareMitsubishielectric — R02cpu FirmwareMitsubishielectric — R04cpu FirmwareMitsubishielectric — R08cpu FirmwareMitsubishielectric — R08pcpu FirmwareMitsubishielectric — R08psfcpu FirmwareMitsubishielectric — R08sfcpu FirmwareMitsubishielectric — R120cpu FirmwareMitsubishielectric — R120pcpu FirmwareMitsubishielectric — R120psfcpu FirmwareMitsubishielectric — R120sfcpu FirmwareMitsubishielectric — R16cpu FirmwareMitsubishielectric — R16pcpu FirmwareMitsubishielectric — R16psfcpu FirmwareMitsubishielectric — R16sfcpu FirmwareMitsubishielectric — R32cpu FirmwareMitsubishielectric — R32pcpu FirmwareMitsubishielectric — R32psfcpu FirmwareMitsubishielectric — R32sfcpu Firmware
CWE
- CWE-400
Referencias
JSON original (NVD)
Mostrar
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