{"id":"CVE-2023-34494","aliases":["EUVD-2023-38551","GHSA-25j6-496g-x28f"],"status":"published","title":"NanoMQ 0.16.5 is vulnerable to heap-use-after-free in the nano_ctx_send function of nmq_mqtt.c.","description":"NanoMQ 0.16.5 is vulnerable to heap-use-after-free in the nano_ctx_send function of nmq_mqtt.c.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00672,"percentile":0.5256,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2023-06-12T00:00:00Z","modified":"2026-10-28T02:30:31Z","products":[{"vendor":"emqx","product":"nanomq"}],"references":[{"url":"https://github.com/emqx/nanomq/issues/1180","tags":["x_transferred","Issue Tracking","Patch","Vendor Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-34494","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-25j6-496g-x28f"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/34xxx/CVE-2023-34494.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-34494","description":"NanoMQ 0.16.5 is vulnerable to heap-use-after-free in the nano_ctx_send function of nmq_mqtt.c.","status":"published","published":"2023-06-12T00:00:00Z","modified":"2025-01-03T23:32:22.599Z","updated_at":"2026-11-02T14:35:35.912488Z"}],"euvd":[{"id":"EUVD-2023-38551","description":"NanoMQ 0.16.5 is vulnerable to heap-use-after-free in the nano_ctx_send function of nmq_mqtt.c.","status":"published","published":"2023-06-12T00:00:00Z","modified":"2025-01-03T23:32:22Z","updated_at":"2026-11-03T00:04:26.092153Z"}],"ghsa":[{"id":"GHSA-25j6-496g-x28f","title":"NanoMQ 0.16.5 is vulnerable to heap-use-after-free in the nano_ctx_send function of nmq_mqtt.c.","description":"NanoMQ 0.16.5 is vulnerable to heap-use-after-free in the nano_ctx_send function of nmq_mqtt.c.","status":"published","published":"2023-06-12T15:30:28Z","modified":"2024-04-04T04:43:25Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:56:26.754135Z"}],"nvd":[{"id":"CVE-2023-34494","description":"NanoMQ 0.16.5 is vulnerable to heap-use-after-free in the nano_ctx_send function of nmq_mqtt.c.","status":"published","published":"2023-06-12T14:15:19.69Z","modified":"2026-06-17T06:03:44.767Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:08:05.329837Z"}],"osv":[{"id":"CVE-2023-34494","description":"NanoMQ 0.16.5 is vulnerable to heap-use-after-free in the nano_ctx_send function of nmq_mqtt.c.","status":"published","published":"2023-06-12T00:00:00Z","modified":"2026-10-28T02:30:31.038241955Z","updated_at":"2026-11-02T15:44:32.116263Z"}]}}