{"api_version":"1","generated_at":"2026-06-24T07:16:13+00:00","cve":"CVE-2026-12847","urls":{"html":"https://cve.report/CVE-2026-12847","api":"https://cve.report/api/cve/CVE-2026-12847.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-12847","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-12847"},"summary":{"title":"GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command","description":"GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485.\n\nDVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it. \n\n\n\nUpon receiving a UDP message,  the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable:\n\n\n#### Gateway field stack overflow\n\nThe following code is vulnerable to a stack overflow that is attacker-controlled:\n\n\n\n      v7 = strlen(g_network_config->gateway);\n\n      memcpy(&reply_buf[216], g_network_config->gateway, v7);","state":"PUBLISHED","assigner":"GV","published_at":"2026-06-24 05:17:26","updated_at":"2026-06-24 05:17:26"},"problem_types":["CWE-121","CWE-121 CWE-121 Stack-based buffer overflow"],"metrics":[{"version":"3.1","source":"0df08a0e-a200-4957-9bb0-084f562506f9","type":"Secondary","score":"10","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","baseScore":10,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"10","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":10,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://www.geovision.com.tw/cyber_security.php","name":"https://www.geovision.com.tw/cyber_security.php","refsource":"0df08a0e-a200-4957-9bb0-084f562506f9","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2026-2377","name":"https://talosintelligence.com/vulnerability_reports/TALOS-2026-2377","refsource":"0df08a0e-a200-4957-9bb0-084f562506f9","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-12847","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12847","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"GeoVision Inc.","product":"GV-I/O Box 4E","version":"affected V2.09","platforms":["Linux"]},{"source":"CNA","vendor":"GeoVision Inc.","product":"GV-I/O Box 4E","version":"unaffected v2.12","platforms":["Linux"]}],"timeline":[{"source":"CNA","time":"2026-04-21T07:34:00.000Z","lang":"en","value":"Finder Reports Vulnerabilties to Vendor"}],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Philippe Laulheret of Cisco Talos","lang":"en"},{"source":"CNA","value":"Kelly Patterson of Cisco Talos","lang":"en"},{"source":"CNA","value":"Robert Sherwin  of Cisco Talos","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","platforms":["Linux"],"product":"GV-I/O Box 4E","vendor":"GeoVision Inc.","versions":[{"status":"affected","version":"V2.09"},{"status":"unaffected","version":"v2.12"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:geovision_inc.:gv-i_o_box_4e:v2.09:*:linux:*:*:*:*:*","vulnerable":true},{"criteria":"cpe:2.3:a:geovision_inc.:gv-i_o_box_4e:v2.12:*:linux:*:*:*:*:*","vulnerable":false}],"negate":false,"operator":"OR"}],"operator":"OR"}],"credits":[{"lang":"en","type":"finder","value":"Philippe Laulheret of Cisco Talos"},{"lang":"en","type":"remediation reviewer","value":"Kelly Patterson of Cisco Talos"},{"lang":"en","type":"coordinator","value":"Robert Sherwin  of Cisco Talos"}],"datePublic":"2026-06-17T03:10:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485.<br><br><div>DVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it. \n<br>\n<br>Upon receiving a UDP message,  the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable:\n<br><br>#### Gateway field stack overflow<br><br>The following code is vulnerable to a stack overflow that is attacker-controlled:\n<br>\n<br>      v7 = strlen(g_network_config-&gt;gateway);\n<br>      memcpy(&amp;reply_buf[216], g_network_config-&gt;gateway, v7);<br><br></div>"}],"value":"GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485.\n\nDVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it. \n\n\n\nUpon receiving a UDP message,  the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable:\n\n\n#### Gateway field stack overflow\n\nThe following code is vulnerable to a stack overflow that is attacker-controlled:\n\n\n\n      v7 = strlen(g_network_config->gateway);\n\n      memcpy(&reply_buf[216], g_network_config->gateway, v7);"}],"impacts":[{"capecId":"CAPEC-100","descriptions":[{"lang":"en","value":"CAPEC-100 Overflow Buffers"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":10,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","description":"CWE-121 Stack-based buffer overflow","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-06-24T03:34:28.215Z","orgId":"0df08a0e-a200-4957-9bb0-084f562506f9","shortName":"GV"},"references":[{"tags":["vendor-advisory"],"url":"https://www.geovision.com.tw/cyber_security.php"},{"tags":["third-party-advisory"],"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2026-2377"}],"source":{"discovery":"EXTERNAL"},"timeline":[{"lang":"en","time":"2026-04-21T07:34:00.000Z","value":"Finder Reports Vulnerabilties to Vendor"}],"title":"GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command","x_generator":{"engine":"Vulnogram 1.0.2"}}},"cveMetadata":{"assignerOrgId":"0df08a0e-a200-4957-9bb0-084f562506f9","assignerShortName":"GV","cveId":"CVE-2026-12847","datePublished":"2026-06-24T03:34:28.215Z","dateReserved":"2026-06-22T00:26:55.874Z","dateUpdated":"2026-06-24T03:34:28.215Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-24 05:17:26","lastModifiedDate":"2026-06-24 05:17:26","problem_types":["CWE-121","CWE-121 CWE-121 Stack-based buffer overflow"],"metrics":{"cvssMetricV31":[{"source":"0df08a0e-a200-4957-9bb0-084f562506f9","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","baseScore":10,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":6}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"12847","Ordinal":"1","Title":"GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities i","CVE":"CVE-2026-12847","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"12847","Ordinal":"1","NoteData":"GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485.\n\nDVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it. \n\n\n\nUpon receiving a UDP message,  the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable:\n\n\n#### Gateway field stack overflow\n\nThe following code is vulnerable to a stack overflow that is attacker-controlled:\n\n\n\n      v7 = strlen(g_network_config->gateway);\n\n      memcpy(&reply_buf[216], g_network_config->gateway, v7);","Type":"Description","Title":"GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities i"}]}}}