{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-38685 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-38685 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-38685 is a critical command injection vulnerability in QNAP Systems Inc. QVR, published on 26 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-38685 and fix it if it is affected.\n\nWhat it is: CVE-2021-38685 is a critical command injection vulnerability in QNAP Systems Inc. QVR, published on 26 Nov 2021. 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-2021-38685 in the wild and no public exploit code.\n\nAffected product: QNAP Systems Inc. QVR. 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-2021-38685/ (Markdown: https://insights.sbomify.com/CVE-2021-38685/index.md)","id":"CVE-2021-38685","markdown":"https://insights.sbomify.com/CVE-2021-38685/index.md","name":"CVE-2021-38685","record":{"aliases":["GHSA-5647-h66r-5vj6"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"QNAP VioStor NVR","requires_auth":"none","summary":"Remote attackers can execute arbitrary commands on QNAP VioStor devices due to a command injection flaw, requiring firmware updates to mitigate.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"qnap","cpe":[{"product":"qvr","vendor":"qnap"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"A command injection vulnerability has been reported to affect QNAP device, VioStor. If exploited, this vulnerability allows remote attackers to run arbitrary commands. We have already fixed this vulnerability in the following versions of QVR: QVR FW 5.1.6 build 20211109 and later","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":"Command Injection Vulnerability in VioStor","id":"CVE-2021-38685","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Improper Authentication Vulnerability in VioStor","id":"CVE-2021-38686"},"packages":[],"prev":{"headline":"Buffer Overflow Vulnerability in Multimedia Console","id":"CVE-2021-38684"},"products":["QVR"],"published":"2021-11-26","related":[{"cvss_score":9.8,"headline":"Vulnerability in QVR","id":"CVE-2022-27588","kev_date_added":null,"published":"2022-05-05"},{"cvss_score":9.8,"headline":"Command Injection Vulnerability in QVR","id":"CVE-2021-34348","kev_date_added":null,"published":"2021-09-27"},{"cvss_score":9.8,"headline":"Command Injection Vulnerability in QVR","id":"CVE-2021-34351","kev_date_added":null,"published":"2021-09-27"},{"cvss_score":9.3,"headline":"VioStor","id":"CVE-2025-52856","kev_date_added":null,"published":"2025-08-29"},{"cvss_score":8.8,"headline":"Improper Authentication Vulnerability in VioStor","id":"CVE-2021-38686","kev_date_added":null,"published":"2021-11-26"},{"cvss_score":7.2,"headline":"Command Injection Vulnerability in QVR","id":"CVE-2021-34352","kev_date_added":null,"published":"2021-10-01"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-17","vendors":["QNAP Systems Inc."]},"summary":"Remote attackers can execute arbitrary commands on QNAP VioStor devices due to a command injection flaw, requiring firmware updates to mitigate.","url":"https://insights.sbomify.com/CVE-2021-38685/"}