RG-EW3000GX: Improper Neutralization of Special Elements used in a Command
CVE-2026-92398 is a critical-severity improper neutralization of special elements used in a command vulnerability in RG-EW3000GX from Ruijie, with a CVSS 3.1 base score of 9.1 out of 10. It can be exploited remotely over the network by an attacker with administrator privileges, without any action from a user. Affected RG-EW3000GX versions: EW_3.0(1)B11P380. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 3.18% chance of exploitation within 30 days, higher than 88% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Check which version of RG-EW3000GX you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Ruijie | RG-EW3000GX | EW_3.0(1)B11P380 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- HighAdministrator-level access is required first.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H. Scored by CNA (vuldb.com).
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 8.5 | High | CNA (vuldb.com) |
| CVSS 3.1 | 9.1 | Critical | CNA (vuldb.com) |
| CVSS 2.0 | 8.3 | High | CNA (vuldb.com) |
Official description
A vulnerability was found in Ruijie RG-EW3000GX EW_3.0(1)B11P380. Affected by this issue is some unknown functionality of the file /etc/rg_config/admin of the component user_list_note Module. Performing a manipulation of the argument Name results in os command injection. It is possible to initiate the attack remotely. The exploit has been made public and could be used.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Neutralization of Special Elements used in a Command
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
How developers prevent this class of flaw
- If at all possible, use library calls rather than external processes to recreate the desired functionality.
- If possible, ensure that all external commands called from the program are statically created.
- Run time: Run time policy enforcement may be used in an allowlist fashion to prevent use of any non-sanctioned commands.
More Improper Neutralization of Special Elements used in a Command vulnerabilities (CWE-77)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: no, technical impact: total).
References
Other references
Other vulnerabilities in RG-EW3000GX
- 9.1 Critical severity
Recent Improper Neutralization of Special Elements used in a Command vulnerabilities
- 9.9 Critical severity
- 9.1 Critical severity
- 8.1 High severity
- 9.1 Critical severity
- 7.4 High severity
- 9.1 Critical severity
Spotted an error? Tell us.