{"answers":{"affected":"It affects 6 products.","exploited":"There is no known exploitation of CVE-2021-35033 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-35033 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-35033 is a high-severity vulnerability in Zyxel NBG6818 series firmware, published on 23 Nov 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-2021-35033 and fix it if it is affected.\n\nWhat it is: CVE-2021-35033 is a high-severity vulnerability in Zyxel NBG6818 series firmware, published on 23 Nov 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-2021-35033 in the wild and no public exploit code.\n\nAffected product: Zyxel NBG6818 series 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-2021-35033/ (Markdown: https://insights.sbomify.com/CVE-2021-35033/index.md)","id":"CVE-2021-35033","markdown":"https://insights.sbomify.com/CVE-2021-35033/index.md","name":"CVE-2021-35033","record":{"aliases":["GHSA-pm46-rmc8-j8j3"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["privilege_escalation","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Zyxel router firmware","requires_auth":"none","summary":"Attackers can gain root access via physical UART connection or enabled remote assistance due to pre-configured password management flaws.","user_interaction":"required","vuln_class":"hardcoded_credentials"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Zyxel","cpe":[{"product":"nbg6818_firmware","vendor":"zyxel"},{"product":"nbg7815_firmware","vendor":"zyxel"},{"product":"wsq20_firmware","vendor":"zyxel"},{"product":"wsq50_firmware","vendor":"zyxel"},{"product":"wsq60_firmware","vendor":"zyxel"},{"product":"wsr30_firmware","vendor":"zyxel"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"},{"id":"CWE-260","name":"Password in Configuration File"}],"description":"A vulnerability in specific versions of Zyxel NBG6818, NBG7815, WSQ20, WSQ50, WSQ60, and WSR30 firmware with pre-configured password management could allow an attacker to obtain root access of the device, if the local attacker dismantles the device and uses a USB-to-UART cable to connect the device, or if the remote assistance feature had been enabled by an authenticated user.","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":"Hardcoded credentials in NBG6818 series firmware","id":"CVE-2021-35033","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"hardcoded_credentials","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Security feature bypass in NBG6604 series firmware","id":"CVE-2021-35034"},"packages":[],"prev":{"headline":"Command injection in GS1900 series firmware","id":"CVE-2021-35032"},"products":["NBG6818 series firmware","NBG7815 series firmware","WSQ20 series firmware","WSQ50 series firmware","WSQ60 series firmware","WSR30 series firmware"],"published":"2021-11-23","related":[],"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":"Attackers can gain root access via physical UART connection or enabled remote assistance due to pre-configured password management flaws.","url":"https://insights.sbomify.com/CVE-2021-35033/"}