{"id":"CVE-2025-4384","aliases":["EUVD-2025-13609","GHSA-2wpp-x4cq-cp8g"],"status":"published","title":"Certificate validity not properly verified","description":"The MQTT add-on of PcVue fails to verify that a remote device’s certificate has not already expired or has not yet become valid. This allows malicious devices to present certificates that are not rejected properly.\n\nThe use of a client certificate reduces the risk for random devices to take advantage of this flaw.","severity":{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/AU:N/R:U/RE:M/U:Green","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00133,"percentile":0.0283,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-298"],"published":"2025-05-06T15:59:27Z","modified":"2026-06-17T09:33:09Z","products":[{"vendor":"arcinfo","product":"pcvue"}],"references":[{"url":"https://www.pcvue.com/security/#SB2025-3","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-4384"},{"url":"https://github.com/advisories/GHSA-2wpp-x4cq-cp8g"}],"sources":{"cve":[{"id":"CVE-2025-4384","title":"Certificate validity not properly verified","description":"The MQTT add-on of PcVue fails to verify that a remote device’s certificate has not already expired or has not yet become valid. This allows malicious devices to present certificates that are not rejected properly.\n\nThe use of a client certificate reduces the risk for random devices to take advantage of this flaw.","status":"published","published":"2025-05-06T15:59:27.839Z","modified":"2025-09-05T16:38:07.518Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/AU:N/R:U/RE:M/U:Green","level":"medium","assessor":"cna"}],"cwes":["CWE-298"],"updated_at":"2026-11-02T14:32:48.512547Z"}],"euvd":[{"id":"EUVD-2025-13609","description":"The MQTT add-on of PcVue fails to verify that a remote device’s certificate has not already expired or has not yet become valid. This allows malicious devices to present certificates that are not rejected properly.\n\nThe use of a client certificate reduces the risk for random devices to take advantage of this flaw.","status":"published","published":"2025-05-06T15:59:27Z","modified":"2025-09-05T16:38:07Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/AU:N/R:U/RE:M/U:Green","level":"medium"}],"updated_at":"2026-11-02T20:31:46.9428Z"}],"ghsa":[{"id":"GHSA-2wpp-x4cq-cp8g","title":"The MQTT add-on of PcVue fails to verify that a remote device’s certificate has not already...","description":"The MQTT add-on of PcVue fails to verify that a remote device’s certificate has not already expired or has not yet become valid. This allows malicious devices to present certificates that are not rejected properly.\n\nThe use of a client certificate reduces the risk for random devices to take advantage of this flaw.","status":"published","published":"2025-05-06T18:30:38Z","modified":"2025-05-06T18:30:39Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:X/RE:M/U:Green","level":"medium"}],"cwes":["CWE-298"],"updated_at":"2026-11-02T15:02:09.053127Z"}],"nvd":[{"id":"CVE-2025-4384","description":"The MQTT add-on of PcVue fails to verify that a remote device’s certificate has not already expired or has not yet become valid. This allows malicious devices to present certificates that are not rejected properly.\n\nThe use of a client certificate reduces the risk for random devices to take advantage of this flaw.","status":"published","published":"2025-05-06T16:15:32.34Z","modified":"2026-06-17T09:33:09.82Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:X/RE:M/U:Green","level":"medium","assessor":"secondary"}],"cwes":["CWE-298"],"updated_at":"2026-11-02T14:11:04.33372Z"}]}}