{"metadata": {"vulnerability": "CVE-2026-54914", "count": 7, "kinds": {"milestone": 3, "sighting": 1, "kev": 0, "other": 3}}, "data": [{"timestamp": "2026-06-16T13:49:33.556Z", "date_only": false, "value": "2026-06-16T13:49:33.556Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-54914", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-11-05T17:27:16.493Z", "date_only": false, "value": "2026-11-05T17:27:16.493Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-54914", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-11-05T17:27:16.493Z", "date_only": false, "value": "2026-11-05T17:27:16.493Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-54914", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-11-05T17:27:16.493Z", "date_only": false, "value": "2026-11-05T17:27:16.493Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / GitHub_M", "record": "CVE-2026-54914", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-11-05T17:36:05.117Z", "date_only": false, "value": "2026-11-05T17:36:05.117387Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117565041186282304", "record": "CVE-2026-54914", "field": "creation_timestamp", "uuid": "077f5aa8-664d-402e-a55e-2835ef9a8521", "content": "CVE-2026-54914 WebAssembly Micro Runtime: Heap Buffer Overflow in WAMR WASI poll_oneoff Output Buffer WebAssembly Micro Runtime (WAMR) is a lightweight standalone WebAssembly (Wasm) runtime. Prior to 2.4.5, wasi_poll_oneoff in core/iwasm/libraries/libc-wasi/libc_wasi_wrapper.c validates the output pointer for only one wasi_event_t, while wasmtime_ssp_poll_oneoff in core/iwasm/libraries/libc-wasi/sandboxed-system-primitives/src/posix.c can write as many events as the guest-controlled nsubscriptions value. A crafted guest module can provide multiple subscriptions that produce events while positioning an output region large enough for only one event, causing a later out[nevents] write to cross the validated Wasm linear-memory boundary into adjacent host heap memory. The overwrite contains partly attacker-controlled event data and can reliably crash the host process, with further confidentiality or integrity consequences depending on heap layout. This issue is fixed in version 2.4.5.\nhttps://www.cve.org/CVERecord?id=CVE-2026-54914https://github.com/wasm-micro-runtime/wasm-micro-runtime/security/advisories/GHSA-wj3p-xhqm-pffchttps://github.com/wasm-micro-runtime/wasm-micro-runtime/commit/1f98fb01d09b2ef5e49dc0be2e6006f962fd87f1https://github.com/wasm-micro-runtime/wasm-micro-runtime/commit/b49d10eac4176817305d60ea59d24bc69a53eb7bhttps://github.com/wasm-micro-runtime/wasm-micro-runtime/releases/tag/WAMR-2.4.5#bytecodealliance #wasm-micro-runtime#CVE_2026_54914#bot", "url": "https://infosec.exchange/users/cve/statuses/117565041186282304"}, {"timestamp": "2026-11-05T18:17:08.873Z", "date_only": false, "value": "2026-11-05T18:17:08.873", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-54914", "record": "FKIE_CVE-2026-54914", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-11-05T18:17:08.873Z", "date_only": false, "value": "2026-11-05T18:17:08.873", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-54914", "record": "FKIE_CVE-2026-54914", "field": "lastModified", "linked_record": true}], "metrics": {"as_of": "2026-11-06T06:36:59.408Z", "anchors": {"origin": {"timestamp": "2026-11-05T17:27:16.493Z", "date_only": false, "value": "2026-11-05T17:27:16.493Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-54914", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "discovery": null, "report": null, "acknowledgement": null, "disclosure": {"timestamp": "2026-11-05T17:27:16.493Z", "date_only": false, "value": "2026-11-05T17:27:16.493Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-54914", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "exploit_publication": null, "exploitation": null, "patch": null}, "vendor_response_time": {"available": false, "missing": ["start", "end"]}, "time_to_exploit": {"available": false, "missing": ["end"]}, "disclosure_to_exploit": {"available": false, "missing": ["end"]}, "disclosure_to_exploit_publication": {"available": false, "missing": ["end"]}, "time_to_patch": {"available": false, "missing": ["start", "end"]}, "total_time_to_patch": {"available": false, "missing": ["start", "end"]}, "disclosure_to_patch": {"available": false, "missing": ["end"]}, "time_unpatched": {"available": true, "seconds": 47382.915901, "hours": 13.16192108361111, "days": 0.5484133784837963, "min_seconds": 47382.915901, "max_seconds": 47382.915901, "approximate": false, "ongoing": true, "order_known": true, "batch_listing": false, "end_before_start": false, "start": {"timestamp": "2026-11-05T17:27:16.493Z", "date_only": false, "value": "2026-11-05T17:27:16.493Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-54914", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "end": {"timestamp": "2026-11-06T06:36:59.408Z", "date_only": false, "label": "As of", "source": "Calculation clock"}}, "exploitation_to_patch": {"available": false, "missing": ["start"]}, "exploit_publication_to_patch": {"available": false, "missing": ["start"]}}}