{"id":"CVE-2026-65200","revision":"497ca11dfc6d4061a3c7df563a5bf7f7","records":[{"revision":"497ca11dfc6d4061a3c7df563a5bf7f7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-65200","aliases":[],"title":"Huawei malicious on-bus PLDM or NCSI device can drive out-of-bounds-heap reads via short MCTP responses","description":"The openUBMC device-management process parses PLDM-over-MCTP and NCSI-over-MCTP responses from on-bus devices, and three response parsers in the shared transport libraries subtract a fixed header or reserved-field size from a device-supplied response length without a lower-bound check. An undersized response wraps the unsigned length difference to a very large value, and the parser then reads far past the response buffer. The affected code sits in the base (non-vendor) PLDM control class and the Huawei NCSI driver, so it is reachable for any PLDM endpoint or Huawei NIC on the internal management bus, unlike the vendor-specific wangxun parser tracked separately.","state":0,"publishedAt":"2026-10-13T14:19:51.462+00:00","modifiedAt":"2026-10-14T18:58:04.702+00:00","affected":[{"ecosystem":"Vendor product","name":"openBMC","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Huawei\",\n                    \"product\": \"openBMC\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"26.06\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","score":3.5,"severity":"LOW"}],"references":["https://www.runzero.com/advisories/huawei-malicious-device-integer-underflow-cve-2026-65200"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-65200","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-65200","identifiers":["CVE-2026-65200"]},"retained":false,"historicalAffected":[]}],"coverage":[]}