{"answers":{"affected":"It affects 31 products.","exploited":"There is no known exploitation of CVE-2021-35036 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-35036 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-35036 is a medium-severity vulnerability in Zyxel VMG3625-T50B firmware, published on 1 Mar 2022. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-35036 and fix it if it is affected.\n\nWhat it is: CVE-2021-35036 is a medium-severity vulnerability in Zyxel VMG3625-T50B firmware, published on 1 Mar 2022. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-35036 in the wild and no public exploit code.\n\nAffected product: Zyxel VMG3625-T50B 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-2021-35036/ (Markdown: https://insights.sbomify.com/CVE-2021-35036/index.md)","id":"CVE-2021-35036","markdown":"https://insights.sbomify.com/CVE-2021-35036/index.md","name":"CVE-2021-35036","record":{"aliases":["GHSA-pp3g-h9w2-v7g4"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Zyxel router firmware","requires_auth":"low_privilege","summary":"An authenticated attacker can read sensitive information from the configuration file due to cleartext storage in Zyxel router firmware.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Zyxel","cpe":[{"product":"ax7501-b0_firmware","vendor":"zyxel"},{"product":"dx3301-t0_firmware","vendor":"zyxel"},{"product":"dx5401-b0_firmware","vendor":"zyxel"},{"product":"emg3525-t50b_firmware","vendor":"zyxel"},{"product":"emg5523-t50b_firmware","vendor":"zyxel"},{"product":"emg5723-t50k_firmware","vendor":"zyxel"},{"product":"ep240p_firmware","vendor":"zyxel"},{"product":"ex5401-b0_firmware","vendor":"zyxel"},{"product":"ex5501-b0_firmware","vendor":"zyxel"},{"product":"lte3301-plus_firmware","vendor":"zyxel"},{"product":"lte5388-m804_firmware","vendor":"zyxel"},{"product":"lte5388-s905_firmware","vendor":"zyxel"},{"product":"lte5398-m904_firmware","vendor":"zyxel"},{"product":"lte7240-m403_firmware","vendor":"zyxel"},{"product":"lte7461-m602_firmware","vendor":"zyxel"},{"product":"lte7480-m804_firmware","vendor":"zyxel"},{"product":"lte7480-s905_firmware","vendor":"zyxel"},{"product":"lte7485-s905_firmware","vendor":"zyxel"},{"product":"lte7490-m804_firmware","vendor":"zyxel"},{"product":"nr5101_firmware","vendor":"zyxel"},{"product":"nr7101_firmware","vendor":"zyxel"},{"product":"nr7102_firmware","vendor":"zyxel"},{"product":"pm7300-t0_firmware","vendor":"zyxel"},{"product":"pmg5317-t20b_firmware","vendor":"zyxel"},{"product":"pmg5617-t20b2_firmware","vendor":"zyxel"},{"product":"pmg5617ga_firmware","vendor":"zyxel"},{"product":"pmg5622ga_firmware","vendor":"zyxel"},{"product":"vmg3625-t50b_firmware","vendor":"zyxel"},{"product":"vmg3927-t50k_firmware","vendor":"zyxel"},{"product":"vmg8623-t50b_firmware","vendor":"zyxel"},{"product":"vmg8825-t50k_firmware","vendor":"zyxel"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-312","name":"Cleartext Storage of Sensitive Information"}],"description":"A cleartext storage of information vulnerability in the Zyxel VMG3625-T50B firmware version V5.50(ABTL.0)b2k could allow an authenticated attacker to obtain sensitive information from the configuration file.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-05-19","github_poc":1,"max_poc_stars":3,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-05-19T11:22:20Z","kind":"github_poc","ref":"https://github.com/minanagehsalalma/zyxel-cve-2021-35036-super-admin-password-leak","stars":3,"title":"Zyxel super-admin credential exposure write-up across CPE/ONT/LTE/5G firmware, with an adapted VMG8825-B50B genpass lab."}],"tier":"poc_unverified"},"has_fix":null,"headline":"Information disclosure in VMG3625-T50B firmware","id":"CVE-2021-35036","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Open redirect in n/a","id":"CVE-2021-35037"},"packages":[],"prev":{"headline":"Information disclosure in NBG6604 series firmware","id":"CVE-2021-35035"},"products":["VMG3625-T50B firmware"],"published":"2022-03-01","related":[{"cvss_score":8.8,"headline":"Command injection in DX3300-T0 firmware","id":"CVE-2025-8693","kev_date_added":null,"published":"2025-11-18"},{"cvss_score":8,"headline":"Command injection in VMG3312-T20A firmware","id":"CVE-2022-26413","kev_date_added":null,"published":"2022-04-11"},{"cvss_score":7.5,"headline":"Memory corruption in VMG8825-T50K firmware","id":"CVE-2024-8748","kev_date_added":null,"published":"2024-12-03"},{"cvss_score":7.5,"headline":"Memory corruption in VMG8825-T50K firmware","id":"CVE-2024-5412","kev_date_added":null,"published":"2024-09-03"},{"cvss_score":7.2,"headline":"Command injection in EX5601-T1 firmware","id":"CVE-2024-12009","kev_date_added":null,"published":"2025-03-11"},{"cvss_score":7.2,"headline":"Command injection in AX7501-B1 firmware","id":"CVE-2024-12010","kev_date_added":null,"published":"2025-03-11"},{"cvss_score":6.8,"headline":"Command injection in DX3300-T0 firmware","id":"CVE-2026-0711","kev_date_added":null,"published":"2026-04-28"}],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["Zyxel"]},"summary":"An authenticated attacker can read sensitive information from the configuration file due to cleartext storage in Zyxel router firmware.","url":"https://insights.sbomify.com/CVE-2021-35036/"}