High severity7.5NVD Advisory· Published Jun 10, 2020· Updated Jun 17, 2026
CVE-2020-13238
CVE-2020-13238
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
23- cpe:2.3:o:mitsubishielectric:melsec_iq-r00cpu_firmware:*:*:*:*:*:*:*:*Range: <=7
- cpe:2.3:o:mitsubishielectric:melsec_iq-r01cpu_firmware:*:*:*:*:*:*:*:*Range: <=7
- cpe:2.3:o:mitsubishielectric:melsec_iq-r02cpu_firmware:*:*:*:*:*:*:*:*Range: <=7
- cpe:2.3:o:mitsubishielectric:melsec_iq-r04cpu_firmware:*:*:*:*:*:*:*:*Range: <=39
- cpe:2.3:o:mitsubishielectric:melsec_iq-r08cpu_firmware:*:*:*:*:*:*:*:*Range: <=39
- cpe:2.3:o:mitsubishielectric:melsec_iq-r08fcpu_firmware:*:*:*:*:*:*:*:*Range: <=20
- cpe:2.3:o:mitsubishielectric:melsec_iq-r08pcpu_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:mitsubishielectric:melsec_iq-r08sfcpu_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:mitsubishielectric:melsec_iq-r120cpu_firmware:*:*:*:*:*:*:*:*Range: <=39
- cpe:2.3:o:mitsubishielectric:melsec_iq-r120fcpu_firmware:*:*:*:*:*:*:*:*Range: <=20
- cpe:2.3:o:mitsubishielectric:melsec_iq-r120pcpu_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:mitsubishielectric:melsec_iq-r120sfcpu_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:mitsubishielectric:melsec_iq-r16cpu_firmware:*:*:*:*:*:*:*:*Range: <=39
- cpe:2.3:o:mitsubishielectric:melsec_iq-r16fcpu_firmware:*:*:*:*:*:*:*:*Range: <=20
- cpe:2.3:o:mitsubishielectric:melsec_iq-r16pcpu_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:mitsubishielectric:melsec_iq-r16sfcpu_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:mitsubishielectric:melsec_iq-r32cpu_firmware:*:*:*:*:*:*:*:*Range: <=39
- cpe:2.3:o:mitsubishielectric:melsec_iq-r32fcpu_firmware:*:*:*:*:*:*:*:*Range: <=20
- cpe:2.3:o:mitsubishielectric:melsec_iq-r32pcpu_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:mitsubishielectric:melsec_iq-r32sfcpu_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:mitsubishielectric:melsec_iq-rj71en71_firmware:*:*:*:*:*:*:*:*
- Mitsubishi/MELSEC iQ-R Series PLCsdescription
- Range: 33
Patches
Vulnerability mechanics
References
3- jvn.jp/vu/JVNVU97662844/index.htmlnvdThird Party Advisory
- www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-001_en.pdfnvdVendor Advisory
- www.us-cert.gov/ics/advisories/icsa-20-161-02nvdThird Party AdvisoryUS Government Resource
News mentions
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