{ "schema_version": "1.4.0", "id": "GHSA-wrr3-chw5-r88x", "modified": "2022-05-24T19:09:02Z", "published": "2022-05-24T19:09:02Z", "aliases": [ "CVE-2021-20596" ], "details": "NULL 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.", "severity": [], "affected": [], "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20596" }, { "type": "WEB", "url": "https://jvn.jp/vu/JVNVU94348759/index.html" }, { "type": "WEB", "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-201-01" }, { "type": "WEB", "url": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-006_en.pdf" } ], "database_specific": { "cwe_ids": [ "CWE-476" ], "severity": "HIGH", "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2021-07-22T12:15:00Z" } }