CVE-2026-76866
8.6
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Netcore | NR255-V | 1.5.130703 | affected |
Weaknesses
- CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
References
- 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
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