{"id":"CVE-2019-5184","aliases":["EUVD-2019-14789","GHSA-rfcj-g83x-pvhm"],"status":"published","title":"An exploitable double free vulnerability exists in the iocheckd service \"I/O-Check\" functionality...","description":"An exploitable double free vulnerability exists in the iocheckd service \"I/O-Check\" functionality of WAGO PFC 200. A specially crafted XML cache file written to a specific location on the device can cause a heap pointer to be freed twice, resulting in a denial of service and potentially code execution. An attacker can send a specially crafted packet to trigger the parsing of this cache file.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00848,"percentile":0.58364,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-415"],"published":"2020-03-23T13:22:45Z","modified":"2026-06-17T02:37:16Z","products":[{"vendor":"wago","product":"pfc200_firmware"}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2019-0965","tags":["x_refsource_MISC","x_transferred","Exploit","Mitigation","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-5184"},{"url":"https://github.com/advisories/GHSA-rfcj-g83x-pvhm"}],"sources":{"cve":[{"id":"CVE-2019-5184","description":"An exploitable double free vulnerability exists in the iocheckd service \"I/O-Check\" functionality of WAGO PFC 200. A specially crafted XML cache file written to a specific location on the device can cause a heap pointer to be freed twice, resulting in a denial of service and potentially code execution. An attacker can send a specially crafted packet to trigger the parsing of this cache file.","status":"published","published":"2020-03-23T13:22:45Z","modified":"2024-08-04T19:47:56.819Z","updated_at":"2026-11-02T14:20:18.746972Z"}],"euvd":[{"id":"EUVD-2019-14789","description":"An exploitable double free vulnerability exists in the iocheckd service \"I/O-Check\" functionality of WAGO PFC 200. A specially crafted XML cache file written to a specific location on the device can cause a heap pointer to be freed twice, resulting in a denial of service and potentially code execution. An attacker can send a specially crafted packet to trigger the parsing of this cache file.","status":"published","published":"2020-03-23T13:22:45Z","modified":"2024-08-04T19:47:56Z","updated_at":"2026-11-03T03:06:53.453369Z"}],"ghsa":[{"id":"GHSA-rfcj-g83x-pvhm","title":"An exploitable double free vulnerability exists in the iocheckd service \"I/O-Check\" functionality...","description":"An exploitable double free vulnerability exists in the iocheckd service \"I/O-Check\" functionality of WAGO PFC 200. A specially crafted XML cache file written to a specific location on the device can cause a heap pointer to be freed twice, resulting in a denial of service and potentially code execution. An attacker can send a specially crafted packet to trigger the parsing of this cache file.","status":"published","published":"2022-05-24T17:12:10Z","modified":"2023-01-29T05:01:49Z","updated_at":"2026-11-02T14:44:55.382004Z"}],"nvd":[{"id":"CVE-2019-5184","description":"An exploitable double free vulnerability exists in the iocheckd service \"I/O-Check\" functionality of WAGO PFC 200. A specially crafted XML cache file written to a specific location on the device can cause a heap pointer to be freed twice, resulting in a denial of service and potentially code execution. An attacker can send a specially crafted packet to trigger the parsing of this cache file.","status":"published","published":"2020-03-23T14:15:13.19Z","modified":"2026-06-17T02:37:16.647Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-415"],"updated_at":"2026-11-02T14:05:45.254119Z"}]}}