Vulnerability record · CVE-2022-4874 · published 11 January 2023
CVE-2022-4874: Netcommwireless nf20 firmware improper authentication vulnerability
Netcommwireless · Nf20 Firmware
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.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
| Link | Tags |
|---|---|
| https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md | ExploitThird Party Advisory |
| https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md | ExploitThird Party Advisory |
| https://www.kb.cert.org/vuls/id/986018 |
Track CVE-2022-4874 inside VULONE
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Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2022-4874), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.
