{"id":"CVE-2022-4874","aliases":["EUVD-2022-52134","GHSA-6pwv-hr7p-g77v"],"status":"published","title":"Authenticated bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows unauthenticated user to get access to content.","description":"Authentication bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows an unauthenticated user to access content. In order to serve static content, the application performs a check for the existence of specific characters in the URL (.css, .png etc). If it exists, it performs a \"fake login\" to give the request an active session to load the file and not redirect to the login page.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.11009,"percentile":0.95934,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2023-01-11T20:39:25Z","modified":"2026-06-17T05:22:05Z","products":[{"vendor":"netcomm","product":"nf20"},{"vendor":"netcomm","product":"nf20mesh"},{"vendor":"netcomm","product":"nl1902"},{"vendor":"netcommwireless","product":"nf20_firmware"},{"vendor":"netcommwireless","product":"nf20mesh_firmware"},{"vendor":"netcommwireless","product":"nl1902_firmware"}],"references":[{"url":"https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md","tags":["x_transferred","Exploit","Third Party Advisory"]},{"url":"https://www.kb.cert.org/vuls/id/986018"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-4874"},{"url":"https://github.com/advisories/GHSA-6pwv-hr7p-g77v"}],"sources":{"cve":[{"id":"CVE-2022-4874","title":"Authenticated bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows unauthenticated user to get access to content.","description":"Authentication bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows an unauthenticated user to access content. In order to serve static content, the application performs a check for the existence of specific characters in the URL (.css, .png etc). If it exists, it performs a \"fake login\" to give the request an active session to load the file and not redirect to the login page.","status":"published","published":"2023-01-11T20:39:25.219Z","modified":"2025-11-04T19:14:31.884Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"adp"}],"updated_at":"2026-11-02T14:34:37.932195Z"}],"euvd":[{"id":"EUVD-2022-52134","description":"Authentication bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows an unauthenticated user to access content. In order to serve static content, the application performs a check for the existence of specific characters in the URL (.css, .png etc). If it exists, it performs a \"fake login\" to give the request an active session to load the file and not redirect to the login page.","status":"published","published":"2023-01-11T20:39:25Z","modified":"2025-11-04T19:14:31Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T19:49:22.827048Z"}],"ghsa":[{"id":"GHSA-6pwv-hr7p-g77v","title":"Authentication bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows an...","description":"Authentication bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows an unauthenticated user to access content. In order to serve static content, the application performs a check for the existence of specific characters in the URL (.css, .png etc). If it exists, it performs a \"fake login\" to give the request an active session to load the file and not redirect to the login page.","status":"published","published":"2023-01-11T21:30:40Z","modified":"2025-11-04T21:30:29Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:04:35.00238Z"}],"nvd":[{"id":"CVE-2022-4874","description":"Authentication bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows an unauthenticated user to access content. In order to serve static content, the application performs a check for the existence of specific characters in the URL (.css, .png etc). If it exists, it performs a \"fake login\" to give the request an active session to load the file and not redirect to the login page.","status":"published","published":"2023-01-11T21:15:10.373Z","modified":"2026-06-17T05:22:05.063Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:07:35.157734Z"}]}}