CVE-2026-76854 (GCVE-0-2026-76854)

Vulnerability from cvelistv5 – Published: 2026-09-15 21:57 – Updated: 2026-09-15 21:57
VLAI
Title
Netcore NR255-V 1.5.130703 Sensitive Information Disclosure via l7_web_auth_user_show.cgi
Summary
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.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-522 - Insufficiently Protected Credentials
Assigner
References
Impacted products
Vendor Product Version CPE status
Netcore NR255-V Affected: 1.5.130703 (custom)
guessed Create a notification for this product.
Date Public
2026-09-04 00:00
Credits
Zhou Ao Yin Luxing Jiang Yuxuan Liu Xin @Nebusec
Show details on NVD website
To clipboard 

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          "type": "finder",
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      "title": "Netcore NR255-V 1.5.130703 Sensitive Information Disclosure via l7_web_auth_user_show.cgi",
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    "assignerShortName": "VulnCheck",
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    "datePublished": "2026-09-15T21:57:50.108Z",
    "dateReserved": "2026-08-19T21:47:08.935Z",
    "dateUpdated": "2026-09-15T21:57:50.108Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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