{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47799 exists.","fix":"No fix has been published for CVE-2021-47799 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-47799 is a high-severity vulnerability in Visual-Tools Visual Tools DVR VX16, published on 15 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-47799 and fix it if it is affected.\n\nWhat it is: CVE-2021-47799 is a high-severity vulnerability in Visual-Tools Visual Tools DVR VX16, published on 15 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47799 exists.\n\nAffected product: Visual-Tools Visual Tools DVR VX16. 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-2021-47799/ (Markdown: https://insights.sbomify.com/CVE-2021-47799/index.md)","id":"CVE-2021-47799","markdown":"https://insights.sbomify.com/CVE-2021-47799/index.md","name":"CVE-2021-47799","record":{"aliases":["GHSA-f5m3-9gmr-6wrh"],"analysis":{"component_type":"iot_embedded","fix_type":"no_fix_stated","impacts":["privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"DVR system","requires_auth":"low_privilege","summary":"Attackers can gain root access on Visual Tools DVR VX16 devices by exploiting unsafe Sudo configurations to bind a shell.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.5,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-266","name":"Incorrect Privilege Assignment"}],"description":"Visual Tools DVR VX16 version 4.2.28 contains a local privilege escalation vulnerability in its Sudo configuration that allows attackers to gain root access. Attackers can exploit the unsafe Sudo settings by using mount commands to bind a shell, enabling unauthorized system-level privileges.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Visual Tools DVR VX16 4.2.28 - Local Privilege Escalation","id":"CVE-2021-47799","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"privilege_escalation","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"b2evolution 7.2.2 - 'edit account details' Cross-Site Request Forgery (CSRF)","id":"CVE-2021-47800"},"packages":[],"prev":{"headline":"NoteBurner 2.35 - Denial Of Service (DoS) (PoC)","id":"CVE-2021-47798"},"products":["Visual Tools DVR VX16"],"published":"2026-01-15","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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-28","vendors":["Visual-Tools"]},"summary":"Attackers can gain root access on Visual Tools DVR VX16 devices by exploiting unsafe Sudo configurations to bind a shell.","url":"https://insights.sbomify.com/CVE-2021-47799/"}