CVE-2026-19971: Missing Authentication in LB-Link WR1210M
CVE-2026-19971 is a medium severity vulnerability in LB-Link WR1210M version 1.0.3. It involves missing authentication in the Backup Endpoint function main within /www/cgi-bin/backup.cgi. The flaw allows an attacker on the local network to access this functionality without authentication. The vendor has not responded to disclosure and no patch or official remediation is currently available.
AI Analysis
Technical Summary
This vulnerability affects LB-Link WR1210M firmware version 1.0.3. The issue is a missing authentication check in the Backup Endpoint component, specifically in the main function of /www/cgi-bin/backup.cgi. This allows an unauthenticated attacker with local network access to potentially manipulate backup functionality. The vulnerability has a CVSS 4.0 base score of 5.3, indicating medium severity. No vendor response or patch has been published as of the disclosure date.
Potential Impact
An attacker on the local network can exploit this vulnerability to access the backup functionality without authentication, potentially leading to unauthorized backup retrieval or manipulation. The impact is limited to local network attackers and does not require user interaction or privileges.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or provided a fix, network segmentation to restrict local network access to the device and monitoring for suspicious activity around the backup endpoint are recommended interim measures.
CVE-2026-19971: Missing Authentication in LB-Link WR1210M
Description
CVE-2026-19971 is a medium severity vulnerability in LB-Link WR1210M version 1.0.3. It involves missing authentication in the Backup Endpoint function main within /www/cgi-bin/backup.cgi. The flaw allows an attacker on the local network to access this functionality without authentication. The vendor has not responded to disclosure and no patch or official remediation is currently available.
CVSS v4.0
Score 5.3medium
Affected software
LB-Link
WR1210M
cpe:2.3:a:lb-link:wr1210m:*:*:*:*:*:*:*:*AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects LB-Link WR1210M firmware version 1.0.3. The issue is a missing authentication check in the Backup Endpoint component, specifically in the main function of /www/cgi-bin/backup.cgi. This allows an unauthenticated attacker with local network access to potentially manipulate backup functionality. The vulnerability has a CVSS 4.0 base score of 5.3, indicating medium severity. No vendor response or patch has been published as of the disclosure date.
Potential Impact
An attacker on the local network can exploit this vulnerability to access the backup functionality without authentication, potentially leading to unauthorized backup retrieval or manipulation. The impact is limited to local network attackers and does not require user interaction or privileges.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or provided a fix, network segmentation to restrict local network access to the device and monitoring for suspicious activity around the backup endpoint are recommended interim measures.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-16T07:58:08.640Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a826a66bf8831d53907ae08
Added to database: 08/17/2026, 01:56:54 UTC
Last enriched: 08/24/2026, 13:26:21 UTC
Last updated: 10/01/2026, 05:08:50 UTC
Views: 61
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.