CVE-2021-20596

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Summary

CVECVE-2021-20596
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-07-22 12:15:00 UTC
Updated2021-08-02 14:25:00 UTC
DescriptionNULL Pointer Dereference in MELSEC-F Series FX3U-ENET firmware version 1.14 and prior, FX3U-ENET-L firmware version 1.14 and prior and FX3U-ENET-P502 firmware version 1.14 and prior allows a remote unauthenticated attacker to cause a DoS condition in communication by sending specially crafted packets. Control by MELSEC-F series PLC is not affected and system reset is required for recovery.

Risk And Classification

Problem Types: CWE-476

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Mitsubishielectric Fx3u-enet-l Firmware All All All All
Operating System Mitsubishielectric Fx3u-enet-p502 Firmware All All All All
Operating System Mitsubishielectric Fx3u-enet Firmware All All All All

References

ReferenceSourceLinkTags
www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-006_en.pdf MISC www.mitsubishielectric.com
Mitsubishi Electric MELSEC-F Series | CISA MISC us-cert.cisa.gov Third Party Advisory
JVNVU#94348759: 三菱電機製 MELSEC F シリーズ Ethernet インタフェースブロックにおける NULL ポインタ参照の脆弱性 MISC jvn.jp
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 590654 Mitsubishi Electric MELSEC-F Series Denial of Service (DoS) Vulnerability (ICSA-21-201-01)
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