Sensitive Information Disclosure in Netcore NR255-V Router Software
CVE-2026-76855

7.1HIGH

Key Information:

Vendor

Netcore

Status
Nr255-v
Vendor
CVE Published:
15 September 2026

What is CVE-2026-76855?

The Netcore NR255-V version 1.5.130703 is susceptible to a sensitive information disclosure vulnerability via its audit endpoints. Attackers are able to exploit this issue by querying the audit components, specifically in files such as l7_web_auth_log_dump_cgi.c, audit_get_cgi.c, and mod_dispatch_auth/plan.json. This exploitation can lead to unauthorized access to other users' session and browsing history data across multiple sessions, posing significant privacy risks.

Affected Version(s)

NR255-V 1.5.130703

References

https://github.com/draw-ctf/netcore-router-public-refs/bl...
third-party-advisory
https://www.vulncheck.com/advisories/netcore-nr255-v-1.5....
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Zhou Ao
Yin Luxing
Jiang Yuxuan
Liu Xin
@Nebusec
.