VULNERABILITY INTELLIGENCE

CVE-2020-13238

CVSS score7.5 HIGH
EPSS probability3.42%
CISA KEVNot currently listed
Published2020-06-10
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

Mitsubishi MELSEC iQ-R Series PLCs with firmware 33 allow attackers to halt the industrial process by sending an unauthenticated crafted packet over the network, because this denial of service attack consumes excessive CPU time. After halting, physical access to the PLC is required in order to restore production.

Weakness classification

  • nvd@nist.gov: CWE-400

Primary references