{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-35028 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-35028 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-35028 is a high-severity command injection vulnerability in Zyxel ZyWALL VPN2S Firmware, published on 29 Sep 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-35028 and fix it if it is affected.\n\nWhat it is: CVE-2021-35028 is a high-severity command injection vulnerability in Zyxel ZyWALL VPN2S Firmware, published on 29 Sep 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-35028 in the wild and no public exploit code.\n\nAffected product: Zyxel ZyWALL VPN2S Firmware. 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-2021-35028/ (Markdown: https://insights.sbomify.com/CVE-2021-35028/index.md)","id":"CVE-2021-35028","markdown":"https://insights.sbomify.com/CVE-2021-35028/index.md","name":"CVE-2021-35028","record":{"aliases":["GHSA-qfm3-mj8g-3hm7"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Zyxel VPN2S firmware","requires_auth":"high_privilege","summary":"An authenticated local user can execute arbitrary OS commands via a command injection flaw in the Zyxel VPN2S firmware CGI program.","user_interaction":"required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Zyxel","cpe":[{"product":"zywall_vpn2s_firmware","vendor":"zyxel"}],"cvss":{"score":7.3,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:C/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 in the CGI program of the Zyxel VPN2S firmware version 1.12 could allow an authenticated, local user to execute arbitrary OS commands.","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 ZyWALL VPN2S Firmware","id":"CVE-2021-35028","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":"Auth bypass in ATP series Firmware","id":"CVE-2021-35029"},"packages":[],"prev":{"headline":"Path traversal in ZyWALL VPN2S Firmware","id":"CVE-2021-35027"},"products":["ZyWALL VPN2S Firmware"],"published":"2021-09-29","related":[{"cvss_score":7.5,"headline":"Path traversal in ZyWALL VPN2S Firmware","id":"CVE-2021-35027","kev_date_added":null,"published":"2021-09-29"}],"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":"2024-08-04","vendors":["Zyxel"]},"summary":"An authenticated local user can execute arbitrary OS commands via a command injection flaw in the Zyxel VPN2S firmware CGI program.","url":"https://insights.sbomify.com/CVE-2021-35028/"}