{"answers":{"affected":"It affects 30 products.","exploited":"Yes. Attackers have exploited CVE-2020-29583 in the wild since at least 3 Nov 2021.","fix":"No fix has been published for CVE-2020-29583 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 May 2022.","what":"CVE-2020-29583 is a critical vulnerability in n/a, published on 22 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-29583 and fix it if it is affected.\n\nWhat it is: CVE-2020-29583 is a critical vulnerability in n/a, published on 22 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2020-29583 in the wild since at least 3 Nov 2021.\n\nAffected product: n/a. 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-2020-29583/ (Markdown: https://insights.sbomify.com/CVE-2020-29583/index.md)","id":"CVE-2020-29583","markdown":"https://insights.sbomify.com/CVE-2020-29583/index.md","name":"CVE-2020-29583","record":{"aliases":["GHSA-59jx-m3c4-2m9w"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["privilege_escalation","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Zyxel USG firewall","requires_auth":"none","summary":"An attacker can use hardcoded credentials to gain admin access to Zyxel USG devices via SSH or web interface.","user_interaction":"not_required","vuln_class":"hardcoded_credentials"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"atp100_firmware","vendor":"zyxel"},{"product":"atp100w_firmware","vendor":"zyxel"},{"product":"atp200_firmware","vendor":"zyxel"},{"product":"atp500_firmware","vendor":"zyxel"},{"product":"atp700_firmware","vendor":"zyxel"},{"product":"atp800_firmware","vendor":"zyxel"},{"product":"usg1100_firmware","vendor":"zyxel"},{"product":"usg110_firmware","vendor":"zyxel"},{"product":"usg1900_firmware","vendor":"zyxel"},{"product":"usg20-vpn_firmware","vendor":"zyxel"},{"product":"usg20w-vpn_firmware","vendor":"zyxel"},{"product":"usg210_firmware","vendor":"zyxel"},{"product":"usg2200_firmware","vendor":"zyxel"},{"product":"usg310_firmware","vendor":"zyxel"},{"product":"usg40_firmware","vendor":"zyxel"},{"product":"usg40w_firmware","vendor":"zyxel"},{"product":"usg60_firmware","vendor":"zyxel"},{"product":"usg60w_firmware","vendor":"zyxel"},{"product":"usg_flex_100_firmware","vendor":"zyxel"},{"product":"usg_flex_100w_firmware","vendor":"zyxel"},{"product":"usg_flex_200_firmware","vendor":"zyxel"},{"product":"usg_flex_500_firmware","vendor":"zyxel"},{"product":"usg_flex_700_firmware","vendor":"zyxel"},{"product":"vpn1000_firmware","vendor":"zyxel"},{"product":"vpn100_firmware","vendor":"zyxel"},{"product":"vpn300_firmware","vendor":"zyxel"},{"product":"vpn50_firmware","vendor":"zyxel"},{"product":"zywall1100_firmware","vendor":"zyxel"},{"product":"zywall110_firmware","vendor":"zyxel"},{"product":"zywall310_firmware","vendor":"zyxel"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","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-522","name":"Insufficiently Protected Credentials"}],"description":"Firmware version 4.60 of Zyxel USG devices contains an undocumented account (zyfwp) with an unchangeable password. The password for this account can be found in cleartext in the firmware. This account can be used by someone to login to the ssh server or web interface with admin privileges.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2021-01-04","github_poc":1,"max_poc_stars":16,"metasploit":0,"nuclei":1,"refs":[{"date":"2021-01-04T00:56:55Z","kind":"github_poc","ref":"https://github.com/ruppde/scan_CVE-2020-29583","stars":16,"title":"Scanner for Zyxel products which are potentially vulnerable due to an undocumented user account (CVE-2020-29583)"},{"date":null,"kind":"nuclei","ref":"http/cves/2020/CVE-2020-29583.yaml","stars":null,"title":"ZyXel USG - Hardcoded Credentials"}],"tier":"exploited"},"has_fix":null,"headline":"Zyxel Multiple Products Use of Hard-Coded Credentials","id":"CVE-2020-29583","indexable":true,"kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","knownRansomwareCampaignUse":"Unknown","product":"Multiple Products","requiredAction":"Apply updates per vendor instructions.","vendorProject":"Zyxel","vulnerabilityName":"Zyxel Multiple Products Use of Hard-Coded Credentials Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"hardcoded_credentials","year":"2020"},"n_packages":0,"n_references":7,"next":{"headline":"Cross-site scripting in n/a","id":"CVE-2020-29587"},"packages":[],"prev":{"headline":"Incorrect Default Permissions in JetBrains Kotlin","id":"CVE-2020-29582"},"products":["n/a"],"published":"2020-12-22","related":[{"cvss_score":9.8,"headline":"Zyxel Multiple Firewalls Buffer Overflow","id":"CVE-2023-33009","kev_date_added":"2023-06-05","published":"2023-05-24"},{"cvss_score":9.8,"headline":"Zyxel Multiple Firewalls Buffer Overflow","id":"CVE-2023-33010","kev_date_added":"2023-06-05","published":"2023-05-24"},{"cvss_score":9.8,"headline":"Zyxel Multiple Firewalls OS Command Injection","id":"CVE-2023-28771","kev_date_added":"2023-05-31","published":"2023-04-25"},{"cvss_score":9.8,"headline":"Zyxel Multiple Firewalls OS Command Injection","id":"CVE-2022-30525","kev_date_added":"2022-05-16","published":"2022-05-12"},{"cvss_score":9.8,"headline":"Zyxel Multiple NAS Devices OS Command Injection","id":"CVE-2020-9054","kev_date_added":"2022-03-25","published":"2020-03-04"},{"cvss_score":9.8,"headline":"Auth bypass in ATP series firmware","id":"CVE-2022-0342","kev_date_added":null,"published":"2022-03-28"}],"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":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-10-21","vendors":["n/a"]},"summary":"An attacker can use hardcoded credentials to gain admin access to Zyxel USG devices via SSH or web interface.","url":"https://insights.sbomify.com/CVE-2020-29583/"}