by Kastro
Paper/Archive/CVE-2026-94100

CVE-2026-94100

Netcore NBR200V2 — Netcore NBR200V2 WAN VLAN Reconfiguration routerd wan_config_set_vlan buffer overflow

EPSS 0.8%public exploitCVSS 9.9
critical.is priorityof 100
51
CVSS 9.9 (CNA)9.9 / 10 × 3029.7Not in CISA KEV+300.0EPSS percentile 56.8.568 × 2011.4Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

A weakness has been identified in Netcore NBR200V2 1.3.241127.071246. Impacted is the function wan_config_set_vlan of the file /usr/bin/routerd of the component WAN VLAN Reconfiguration. Executing a manipulation of the argument vlan_wanX.ports can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected

ProductAffectedFixed inSource
NBR200V21.3.241127.071246–CNA

Scores by source

VulDB (CNA)9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
VulDB (CNA)9.9CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
VulDB (CNA)9.4CVSS: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
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

writeupvuldb.com/vuln/408029refvuldb.com/vuln/408029/ctiwriteupvuldb.com/cve/CVE-2026-94100writeupvuldb.com/submit/892994exploitapp.notion.com/p/Netcore-NBR200V2-Vul-8-39f797159f158003ad3eff2fd36342b6