{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37220 exists.","fix":"No fix has been published for CVE-2020-37220 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-37220 is a high-severity vulnerability in www.huawei.com HG630 V2 Router, published on 13 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-37220 and fix it if it is affected.\n\nWhat it is: CVE-2020-37220 is a high-severity vulnerability in www.huawei.com HG630 V2 Router, published on 13 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37220 exists.\n\nAffected product: www.huawei.com HG630 V2 Router. 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-2020-37220/ (Markdown: https://insights.sbomify.com/CVE-2020-37220/index.md)","id":"CVE-2020-37220","markdown":"https://insights.sbomify.com/CVE-2020-37220/index.md","name":"CVE-2020-37220","record":{"aliases":["GHSA-h3fj-fchj-5wrp"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["privilege_escalation","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Huawei home router","requires_auth":"none","summary":"Attackers can bypass authentication on Huawei HG630 V2 routers by using the device serial number as the admin password, gaining full control.","user_interaction":"not_required","vuln_class":"hardcoded_credentials"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-798","name":"Use of Hard-coded Credentials"}],"description":"Huawei HG630 V2 router contains an authentication bypass vulnerability that allows unauthenticated attackers to obtain administrative access by retrieving the device serial number. Attackers can query the /api/system/deviceinfo endpoint without authentication to extract the SerialNumber field, then use the last 8 characters as the default password to log in to the router.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Huawei HG630 V2 Router Authentication Bypass via Serial Number","id":"CVE-2020-37220","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"hardcoded_credentials","year":"2020"},"n_packages":0,"n_references":3,"next":{"headline":"Atomic Alarm Clock 6.3 Stack Overflow via SEH Unicode","id":"CVE-2020-37221"},"packages":[],"prev":{"headline":"Joomla com_fabrik 3.9.11 Directory Traversal via image.php","id":"CVE-2020-37219"},"products":["HG630 V2 Router"],"published":"2026-05-13","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-26","vendors":["www.huawei.com"]},"summary":"Attackers can bypass authentication on Huawei HG630 V2 routers by using the device serial number as the admin password, gaining full control.","url":"https://insights.sbomify.com/CVE-2020-37220/"}