{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-20639 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20639 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20639 is a medium-severity command injection vulnerability in LOGITEC CORPORATION LAN-W300N/PGRB, published on 12 Feb 2021. 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-2021-20639 and fix it if it is affected.\n\nWhat it is: CVE-2021-20639 is a medium-severity command injection vulnerability in LOGITEC CORPORATION LAN-W300N/PGRB, published on 12 Feb 2021. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-20639 in the wild and no public exploit code.\n\nAffected product: LOGITEC CORPORATION LAN-W300N/PGRB. 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-2021-20639/ (Markdown: https://insights.sbomify.com/CVE-2021-20639/index.md)","id":"CVE-2021-20639","markdown":"https://insights.sbomify.com/CVE-2021-20639/index.md","name":"CVE-2021-20639","record":{"aliases":["GHSA-w889-hmcf-f56m"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Wireless router","requires_auth":"high_privilege","summary":"An attacker with administrative privileges can execute arbitrary OS commands on the LOGITEC LAN-W300N/PGRB router.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[{"product":"lan-w300n\\/pgrb_firmware","vendor":"logitech"}],"cvss":{"score":6.8,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:A/AC:L/PR:H/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":"LOGITEC LAN-W300N/PGRB allows an attacker with administrative privilege to execute arbitrary OS commands via unspecified vectors.","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 in LAN-W300N/PGRB","id":"CVE-2021-20639","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Command injection in LAN-W300N/PGRB","id":"CVE-2021-20640"},"packages":[],"prev":{"headline":"Command injection in LAN-W300N/PGRB","id":"CVE-2021-20638"},"products":["LAN-W300N/PGRB"],"published":"2021-02-12","related":[{"cvss_score":6.8,"headline":"Command injection in LAN-W300N/PGRB","id":"CVE-2021-20638","kev_date_added":null,"published":"2021-02-12"},{"cvss_score":6.8,"headline":"Command injection in LAN-W300N/PGRB","id":"CVE-2021-20640","kev_date_added":null,"published":"2021-02-12"}],"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":"2024-08-03","vendors":["LOGITEC CORPORATION"]},"summary":"An attacker with administrative privileges can execute arbitrary OS commands on the LOGITEC LAN-W300N/PGRB router.","url":"https://insights.sbomify.com/CVE-2021-20639/"}