{"id":"CVE-2014-0777","state":"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.","publishedAt":"2014-04-11T16:00:00.000Z","updatedAt":"2025-09-24T21:14:59.224Z","severity":{"score":8.3,"label":"High","version":"2.0","vector":"AV:N/AC:M/Au:N/C:P/I:P/A:C","source":"icscert"},"assigner":"icscert","products":["IOServer OPC Drivers"],"affected":[{"vendor":"IOServer","product":"OPC Drivers","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.0.20","versionType":"custom"}]}],"references":["https://www.cisa.gov/news-events/ics-advisories/icsa-14-100-01","http://www.ioserver.com/","http://ics-cert.us-cert.gov/advisories/ICSA-14-100-01"],"weaknesses":["CWE-125"],"ingestedAt":"2026-10-29T19:41:00.122Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2014/0xxx/CVE-2014-0777.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2014-0777","state":"PUBLISHED","datePublished":"2014-04-11T16:00:00.000Z","dateUpdated":"2025-09-24T21:14:59.224Z","assignerShortName":"icscert","assignerOrgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateReserved":"2014-01-02T00:00:00.000Z"},"containers":{"cna":{"title":"OServer Out of Bounds Read","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"IOServer","product":"OPC Drivers","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.0.20","versionType":"custom"}]}],"references":[{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-14-100-01"},{"url":"http://www.ioserver.com/"}],"metrics":[{"cvssV2_0":{"accessComplexity":"MEDIUM","accessVector":"NETWORK","authentication":"NONE","availabilityImpact":"COMPLETE","baseScore":8.3,"confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:C","version":"2.0"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","description":"CWE-125","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"icscert","orgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateUpdated":"2025-09-24T21:14:59.224Z"},"credits":[{"lang":"en","type":"finder","value":"Chris Sistrunk of Mandiant and Adam Crain of Automatak"}],"datePublic":"2014-04-10T06:00:00.000Z","solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>IOServer has produced a new version that mitigates the vulnerability.\n The new version, Beta2112.exe, is available for download here:&nbsp;<a target=\"_blank\" rel=\"nofollow\" href=\"http://www.ioserver.com/\">http://www.ioserver.com/</a></p>\n\n<br>"}],"value":"IOServer has produced a new version that mitigates the vulnerability.\n The new version, Beta2112.exe, is available for download here:  http://www.ioserver.com/"}],"source":{"advisory":"ICSA-14-100-01","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"ics-cert@hq.dhs.gov","ID":"CVE-2014-0777","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"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."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"http://ics-cert.us-cert.gov/advisories/ICSA-14-100-01","refsource":"MISC","url":"http://ics-cert.us-cert.gov/advisories/ICSA-14-100-01"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://ics-cert.us-cert.gov/advisories/ICSA-14-100-01","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-06T09:27:19.502Z"}}]}}}