{"id":"CVE-2014-0777","aliases":["EUVD-2014-0808","GHSA-p75m-894q-gmxh"],"status":"published","title":"OServer Out of Bounds Read","description":"The Modbus slave/outstation driver in the OPC Drivers 1.0.20 and earlier in IOServer OPC Server allows remote attackers to cause a denial of service (out-of-bounds read and daemon crash) via a crafted packet.","severity":{"version":"2.0","score":8.3,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:C","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.02403,"percentile":0.84164,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-125"],"published":"2014-04-11T16:00:00Z","modified":"2026-06-17T00:03:37Z","products":[{"vendor":"ioserver","product":"ioserver_opc_server"},{"vendor":"ioserver","product":"opc drivers"},{"vendor":"ioserver","product":"opc_drivers"}],"references":[{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-14-100-01"},{"url":"http://www.ioserver.com/"},{"url":"http://ics-cert.us-cert.gov/advisories/ICSA-14-100-01","tags":["x_refsource_MISC","x_transferred","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-0777"},{"url":"http://www.ioserver.com"},{"url":"https://github.com/advisories/GHSA-p75m-894q-gmxh"}],"sources":{"cve":[{"id":"CVE-2014-0777","title":"OServer Out of Bounds Read","description":"The Modbus slave/outstation driver in the OPC Drivers 1.0.20 and earlier in IOServer OPC Server allows remote attackers to cause a denial of service (out-of-bounds read and daemon crash) via a crafted packet.","status":"published","published":"2014-04-11T16:00:00Z","modified":"2025-09-24T21:14:59.224Z","cvss":[{"version":"2.0","score":8.3,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:C","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:33:47.330011Z"}],"euvd":[{"id":"EUVD-2014-0808","description":"The Modbus slave/outstation driver in the OPC Drivers 1.0.20 and earlier in IOServer OPC Server allows remote attackers to cause a denial of service (out-of-bounds read and daemon crash) via a crafted packet.","status":"published","published":"2014-04-11T16:00:00Z","modified":"2025-09-24T21:14:59Z","cvss":[{"version":"2.0","score":8.3,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:C","level":"high"}],"updated_at":"2026-11-02T20:31:40.063213Z"}],"ghsa":[{"id":"GHSA-p75m-894q-gmxh","title":"The Modbus slave/outstation driver in the OPC Drivers 1.0.20 and earlier in IOServer OPC Server...","description":"The Modbus slave/outstation driver in the OPC Drivers 1.0.20 and earlier in IOServer OPC Server allows remote attackers to cause a denial of service (out-of-bounds read and daemon crash) via a crafted packet.","status":"published","published":"2022-05-17T04:47:23Z","modified":"2025-09-25T00:30:28Z","cwes":["CWE-119","CWE-125"],"updated_at":"2026-11-02T15:03:45.893243Z"}],"nvd":[{"id":"CVE-2014-0777","description":"The Modbus slave/outstation driver in the OPC Drivers 1.0.20 and earlier in IOServer OPC Server allows remote attackers to cause a denial of service (out-of-bounds read and daemon crash) via a crafted packet.","status":"published","published":"2014-04-11T16:55:03.457Z","modified":"2026-06-17T00:03:37.273Z","cvss":[{"version":"2.0","score":8.3,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:C","level":"high","assessor":"secondary"},{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-125","CWE-119"],"updated_at":"2026-11-02T14:02:53.710973Z"}]}}