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CVE-2026-76866

Netcore NR255-V 1.5.130703 OS Command Argument Injection via Unquoted DDNS Parameters

CVSS 4.0 8.6 HIGHCVSS 3.1 7.2 HIGHCheck source for fixed versionsKEV status unknown
Original advisory

cve-program · CVE-2026-76866

Published

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.

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Affected versions, risk and source history

Related advisories and sources

Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.

CVE-2026-76866 · CVE overview and exploitation status

cve-program · CVE-2026-76866

Related changes

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ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 13 Nov 03:01 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current

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