What is GHSA-48c9-xhf8-82q7?

GHSA-48c9-xhf8-82q7 is a security advisory published by GitHub Security Advisories with High severity. Netcore NR255-V firmware version 1.5.130703 builds root-run command lines from unquoted user...

Which CVE IDs does GHSA-48c9-xhf8-82q7 cover?

GHSA-48c9-xhf8-82q7 covers the following CVE IDs: CVE-2026-76866. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-48c9-xhf8-82q7?

GHSA-48c9-xhf8-82q7 has a CVSS v3 base score of 7.2, published by GitHub Security Advisories.

GHSA-48c9-xhf8-82q7HighCVSS 7.2

Netcore NR255-V firmware version 1.5.130703 builds root-run command lines from unquoted user...

Vendor

GitHub Security Advisories

Published

September 16, 2026

Last Modified

September 16, 2026

🔗 CVE IDs covered (1)

CVE-2026-76866 →

📋 Description

Netcore NR255-V firmware version 1.5.130703 builds root-run command lines from unquoted user-supplied DDNS input in DDNSset_cgi.c and related ddns_Proc.c components, enabling os command argument injection. Attackers can exploit the unsanitized parameters to inject additional command arguments executed with root privileges.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-76866
https://github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr255v-ddns-argv-injection.md
https://www.vulncheck.com/advisories/netcore-nr255-v-1.5.130703-os-command-argument-injection-via-unquoted-ddns-parameters
https://github.com/advisories/GHSA-48c9-xhf8-82q7