Stored Cross-Site Scripting in Netcore NR255-V Router Product
CVE-2026-76873

5.1MEDIUM

Key Information:

Vendor

Netcore

Status
Nr255-v
Vendor
CVE Published:
15 September 2026

What is CVE-2026-76873?

The Netcore NR255-V version 1.5.130703 contains a stored cross-site scripting vulnerability due to improper handling of hostname fields in DHCP dynamic IP display and ARP bind list display components. A local network attacker can exploit this vulnerability by injecting a malicious script into the hostname fields. When these fields are processed, the scripts are executed in the context of the web management interface, potentially compromising the security of network users and data.

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:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Zhou Ao
Yin Luxing
Jiang Yuxuan
Liu Xin
@Nebusec
.