CVE-2026-76854: Insufficiently Protected Credentials in Netcore NR255-V
Netcore NR255-V version 1.5.130703 contains a sensitive information disclosure vulnerability in l7_web_auth_user_show.cgi related to captive-portal credential handling. Attackers can query this component to obtain captive-portal user credentials, compromising confidentiality of authenticated network access.
AI Analysis
Technical Summary
CVE-2026-76854 describes a sensitive information disclosure vulnerability in Netcore NR255-V version 1.5.130703. The flaw exists in the l7_web_auth_user_show.cgi component related to captive-portal credential handling. Attackers can query this component to retrieve captive-portal user credentials, exposing sensitive authentication information.
Potential Impact
An attacker with network access and low privileges can retrieve captive-portal user credentials, compromising the confidentiality of authenticated network sessions. This could allow unauthorized access to network resources or user accounts relying on captive-portal authentication.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided in the available data. Until a patch is available, restrict access to the vulnerable component and monitor for unauthorized queries to l7_web_auth_user_show.cgi if possible.
CVE-2026-76854: Insufficiently Protected Credentials in Netcore NR255-V
Description
Netcore NR255-V version 1.5.130703 contains a sensitive information disclosure vulnerability in l7_web_auth_user_show.cgi related to captive-portal credential handling. Attackers can query this component to obtain captive-portal user credentials, compromising confidentiality of authenticated network access.
CVSS v4.0
Score 7.1high
Affected software
Netcore
NR255-V
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-76854 describes a sensitive information disclosure vulnerability in Netcore NR255-V version 1.5.130703. The flaw exists in the l7_web_auth_user_show.cgi component related to captive-portal credential handling. Attackers can query this component to retrieve captive-portal user credentials, exposing sensitive authentication information.
Potential Impact
An attacker with network access and low privileges can retrieve captive-portal user credentials, compromising the confidentiality of authenticated network sessions. This could allow unauthorized access to network resources or user accounts relying on captive-portal authentication.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided in the available data. Until a patch is available, restrict access to the vulnerable component and monitor for unauthorized queries to l7_web_auth_user_show.cgi if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-19T21:47:08.935Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aa9c06c55bf5e2cf56f823b
Added to database: 09/15/2026, 22:02:20 UTC
Last enriched: 09/15/2026, 22:24:28 UTC
Last updated: 09/16/2026, 03:19:47 UTC
Views: 4
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