EUVD-2026-88084
GHSA-qcrv-9mf8-54m6
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable, low-complexity injection needing low-priv auth (PR:L); command execution on the device yields full C/I/A with no cross-system scope change (S:U).
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
Lifecycle Timeline
8DescriptionCVE.org
A security flaw has been discovered in Netcore NBR200V2 1.3.241127.071246. Affected is the function system of the file /usr/bin/network_tools of the component Tools Ping Handler. Performing a manipulation of the argument url results in os command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
AnalysisAI
OS command injection in the Netcore NBR200V2 wireless router (firmware 1.3.241127.071246) lets an authenticated, low-privilege user execute arbitrary shell commands on the device by manipulating the 'url' argument passed to the Tools Ping Handler in /usr/bin/network_tools. Exploitation is network-reachable, requires no user interaction, and publicly available exploit code exists (a proof-of-concept write-up is hosted on GitHub), so any NBR200V2 whose management/diagnostics interface is reachable and whose credentials are known, guessable, or left at default should be considered at immediate risk. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation targets the Tools Ping Handler exposed by /usr/bin/network_tools on the Netcore NBR200V2 (firmware 1.3.241127.071246); the attacker manipulates the 'url' argument so shell metacharacters reach a system() call. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/PR:L/UI:N) describes a low-complexity, network-reachable OS command injection requiring only low-privilege authentication, and the vendor scores it 8.6 with the E:P (proof-of-concept) modifier. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch has been identified at time of analysis: Netcore was contacted about the disclosure and did not respond, and no fixed firmware version appears in the CPE or advisory data, so remediation must be compensating. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory every Netcore NBR200V2 and confirm which are running firmware 1.3.241127.071246; for any device whose management or diagnostics interface is reachable from untrusted networks, immediately block the administrative and diagnostic ports at the perimeter and host firewalls, remove default and shared credentials, enforce unique strong passwords, and disable remote management and the Tools Ping Handler diagnostics function where the product permits. …
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Same weakness CWE-78 – OS Command Injection
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External POC / Exploit Code
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