Description
A flaw has been found in LB-Link WR1210M 1.0.3. This impacts the function main of the file /www/cgi-bin/backup.cgi of the component Backup Endpoint. This manipulation causes missing authentication. The attack is only possible within the local network. The vendor was contacted early about this disclosure but did not respond in any way.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| LB-Link | WR1210M | 1.0.3 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
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tianlansedexiaoniu/CVE-2026-19971_guest ★ 0 · Nov 1, 2026
LB-LINK WR1210M (CVE-2026-19971) 未授权配置泄露漏洞与访客网络扩展攻击链分析
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- VDB-391148 | LB-Link WR1210M Backup Endpoint backup.cgi main missing authentication vdb-entry technical-description
- VDB-391148 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-19971 | CVE Analysis and Report third-party-advisory
- Submit #873139 | LB-LINK WR1210M V3.0 Firmware V1.0.3 Missing Authentication third-party-advisory