CVEvulnerability
CVE-2026-35019
9.2 CRITICAL
Official page ↗
- Status
- Deferred
- Published
- 2026-06-23
- Last modified
- 2026-10-25
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 9.2 CRITICAL — CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-321
Description
NetComm NF20MESH routers running firmware R6B031 and earlier contain an authentication bypass vulnerability that allows unauthenticated attackers to gain administrative access by exploiting a hardcoded AES-256 key used to encrypt session cookies for the web management interface. Attackers can forge a valid encrypted session cookie using the shared hardcoded key and bypass authentication checks to obtain full administrative control of the management interface while any legitimate administrator session is active.
Related
Weakness · CWE (1)
- CWE-321 Use of Hard-coded Cryptographic Key weakness
References
- https://signal11.io/advisories/netcomm-nf20-mesh-authentication-bypass signal11.io
- https://support.netcommwireless.com/api/Media/Firmware/4407c21d-e990-49a4-9754-b72475f20c76?Product=NF20MESH%20Release%20Notes.pdf support.netcommwireless.com
- https://support.netcommwireless.com/products/nf20mesh#Firmware support.netcommwireless.com
- https://www.vulncheck.com/advisories/netcomm-nf20mesh-r6b032-hardcoded-aes-key-authentication-bypass www.vulncheck.com