{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-12847 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-12847 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-12847 is a critical memory corruption vulnerability in GeoVision Inc. GV-I/O Box 4E, published on 24 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-12847 and fix it if it is affected.\n\nWhat it is: CVE-2026-12847 is a critical memory corruption vulnerability in GeoVision Inc. GV-I/O Box 4E, published on 24 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-12847 in the wild and no public exploit code.\n\nAffected product: GeoVision Inc. GV-I/O Box 4E. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-12847/ (Markdown: https://insights.sbomify.com/CVE-2026-12847/index.md)","id":"CVE-2026-12847","markdown":"https://insights.sbomify.com/CVE-2026-12847/index.md","name":"CVE-2026-12847","record":{"aliases":["GHSA-6hhf-75q4-5pc2"],"analysis":{"component_type":"iot_embedded","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"GV-I/O Box DVRSearch","requires_auth":"none","summary":"A stack-based buffer overflow in the DVRSearch service allows remote attackers to execute arbitrary code via crafted UDP messages.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GV","cpe":[],"cvss":{"score":10,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"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\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#### Gateway field stack overflow\n\nThe following code is vulnerable to a stack overflow that is attacker-controlled:\n\n      v7 = strlen(g_network_config-\u003egateway);\n\n      memcpy(\u0026reply_buf[216], g_network_config-\u003egateway, v7);","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command","id":"CVE-2026-12847","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command","id":"CVE-2026-12848"},"packages":[],"prev":{"headline":"GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command","id":"CVE-2026-12846"},"products":["GV-I/O Box 4E"],"published":"2026-06-24","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-06-24","vendors":["GeoVision Inc."]},"summary":"A stack-based buffer overflow in the DVRSearch service allows remote attackers to execute arbitrary code via crafted UDP messages.","url":"https://insights.sbomify.com/CVE-2026-12847/"}