CVE-2026-94098 — Netcore NBR200V2 Firmware Upgrade CGI Endpoint upgrade command injection
A vulnerability was identified in Netcore NBR200V2 1.3.241127.071246. This vulnerability affects unknown code of the file /www/cgi-bin/upgrade of the component Firmware Upgrade CGI Endpoint. Such manipulation of the argument QUERY_STRING leads to command injection. The attack can be executed remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- EPSS 2.4% (30-day exploitation probability)+13
- Technical severity (critical)+10
- CISA SSVC: exploitation "poc"+5
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
CISA SSVC assessment CISA
Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (Netcore NBR200V2).
- No fix documented in the sources: reduce exposure and monitor the vendor advisory.
- Search available logs for exploit probes matching the vulnerability class (injection), errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Every base score collected
Sources score independently and may disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Scored by |
|---|---|---|---|---|---|
| 9.4 | CVSS 4.0 | Critical | — | — | VulDB via CVE Program (cve.org) e CISA ADP |
| 8.5 | CVSS 4.0 | High | — | — | cna@vuldb.com via NIST National Vulnerability Database |
| 9.1 | CVSS 3.1 | Critical | 2.3 | 6.0 | cna@vuldb.com via NIST National Vulnerability Database |
| 9.1 | CVSS 3.1 | Critical | — | — | VulDB via CVE Program (cve.org) e CISA ADP |
| 9.1 | CVSS 3.0 | Critical | — | — | VulDB via CVE Program (cve.org) e CISA ADP |
| 8.3 | CVSS 2.0 | High | 6.4 | 10.0 | cna@vuldb.com via NIST National Vulnerability Database |
| 8.3 | CVSS 2.0 | High | — | — | VulDB via CVE Program (cve.org) e CISA ADP |
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H (score shown at the top: cna@vuldb.com) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
- Look for parameters with command/query metacharacters and unexpected child processes of the service.
Timeline
What happened to this CVE, newest first.
- 2026
- Affected products added · netcore/nbr200v2
- SSVC assessment updated
- Record published
- CVSS changed · 9.1
- Source status changed · → Deferred
- Record created in this database
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 1× Official description updated · Oct 15, 2026 – Oct 15, 2026
References
5 on the record
Elsewhere on this site
Related CVEs (same products)
- Critical CVE-2026-101002 Netcore NBR200V2 Tools Ping network_tools system os command injection 18d
- Critical CVE-2026-101001 Netcore NBR200V2 Web Management network_tools eval os command injection 18d
- Critical CVE-2026-94101 Netcore NBR200V2 routerd vlan_load_form_uci buffer overflow 25d
- Critical CVE-2026-94100 Netcore NBR200V2 WAN VLAN Reconfiguration routerd wan_config_set_vlan buffer overflow 25d
- Critical CVE-2026-94099 Netcore NBR200V2 Backup Restore restore.cgi command injection 25d
- Critical CVE-2026-94095 Netcore NBR200V2 Traceroute Diagnostic Feature network_tools command injection 25d
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No fixed version, patch or mitigation documented.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2026-94098 is "Netcore NBR200V2 Firmware Upgrade CGI Endpoint upgrade command injection", rated Critical. It affects NBR200V2 (Netcore); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 9.1 describes technical severity. EPSS 2.39% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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