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Rg Ew1200R Firmware CVE-2023-34644

CRITICAL
Code Injection (CWE-94)
2023-07-31 cve@mitre.org
RCE Code Injection Rg Ew1200R Firmware Rg Ew1200 Firmware Rg Ew1200G Firmware Rg Ew300 Firmware Rg Ew3200Gx Firmware Rg Ew1800Gx Firmware Rg Ew300R Firmware Rg Eg3000Xe Firmware Rg Eg105G Firmware Rg Eg305Gh P E Firmware Rg Eg105G P Firmware Rg Eg3230 Firmware Rg Eg1000E Firmware Rg Eg105G E Firmware Rg Eg105Gw T Firmware Rg Eg105Gw X Firmware Rg Eg2000Ce Firmware Rg Eg2100 P Firmware Rg Eg209Gs Firmware Rg Eg310Gh E Firmware Rg Eg3000Eu Firmware Rg Eg210G P Firmware Rg Eg3250 Firmware Re Eg1000M Firmware Rg Eg1000C Firmware Rg Nbs3100 48Gt4Sfp P Firmware Rg Nbs3200 24Gt4Xs Firmware Rg Nbs3200 24Sfp Firmware Rg Nbs3200 8Gt4Xs Firmware Rg Nbs3200 24Gt4Xs P Firmware Rg Nbs3200 48Gt4Xs Firmware Rg Nbs3200 48Gt4Xs P Firmware Rg Nbs3100 24Gt4Sfp Firmware Rg Nbs3100 24Gt4Sfp P Firmware Rg Nbs3100 8Gt2Sfp Firmware Rg Nbs3100 8Gt2Sfp P Firmware Rg Rap1260 Firmware Rg Rap2266 Firmware Rg Rap1261 Firmware Rg Rap73Hd Firmware Rg Rap2200 E Firmware Rg Rap6260 H Firmware Rg Rap1200 P Firmware Rg Rap2260 E Firmware Rg Rap6262 G Firmware Rg Rap6262 Firmware Rg Rap2260 Firmware Rg Rap6202 G Firmware Rg Rap1201 Firmware Rg Rap1200 F Firmware Rg Rap2260 F Firmware Rg Rap2200 F Firmware Rg Rap6260 G Firmware Rg Rap2260 G Firmware Rg Rap6260 H D Firmware Rg Nbc256 Firmware Rg Nbc512 Firmware Rg S1930 24Gt4Sfp Firmware Rg S1930 24T4Sfp P Firmware Rg S1930 8Gt2Sfp Firmware Rg S1930 8Gt2Sfp P Firmware Rg S1930 8T2Sfp P Firmware Rg S1930 24T4Sfp Firmware Rg S1930 24Gt4Sfp P Firmware Rg S1930 8T2Sfp Firmware Ruijie
9.8
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Code injection prevention, sandbox exec
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.

Exploit ScenarioDerived

A remote attacker could inject and execute arbitrary code within the application by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
Patch available 1.5% exploitation probability (EPSS)

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AnalysisAI

Remote code execution vulnerability in Ruijie Networks Product: RG-EW series home routers and repeaters EW_3.0(1)B11P204, RG-NBS and RG-S1930 series switches SWITCH_3.0(1)B11P218, RG-EG series. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Code Injection vulnerability could allow attackers to inject and execute arbitrary code within the application.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Never evaluate user-controlled input as code. Use sandboxing, disable dangerous functions, apply strict input validation.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Code Injection (CWE-94), which allows attackers to inject and execute arbitrary code within the application. Remote code execution vulnerability in Ruijie Networks Product: RG-EW series home routers and repeaters EW_3.0(1)B11P204, RG-NBS and RG-S1930 series switches SWITCH_3.0(1)B11P218, RG-EG series business VPN routers EG_3.0(1)B11P216, EAP and RAP series wireless access points AP_3.0(1)B11P218, NBC series wireless controllers AC_3.0(1)B11P86 allows unauthorized remote attackers to gain the highest privileges via crafted POST request to /cgi-bin/luci/api/auth. Affected products include: Ruijie Rg-Ew1200R Firmware, Ruijie Rg-Ew300 Firmware, Ruijie Rg-Ew3200Gx Firmware, Ruijie Rg-Ew1200G Firmware, Ruijie Rg-Ew1800Gx Firmware.

Severity by source

NVD PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

Remote code execution vulnerability in Ruijie Networks Product: RG-EW series home routers and repeaters EW_3.0(1)B11P204, RG-NBS and RG-S1930 series switches SWITCH_3.0(1)B11P218, RG-EG series business VPN routers EG_3.0(1)B11P216, EAP and RAP series wireless access points AP_3.0(1)B11P218, NBC series wireless controllers AC_3.0(1)B11P86 allows unauthorized remote attackers to gain the highest privileges via crafted POST request to /cgi-bin/luci/api/auth.

Threat Intelligence Overview

EPSS Score
1.5%
Top 28% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 1.5%
Patch available Yes
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

51
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +49
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Code Injection CRITICAL

Code injection occurs when an application accepts user input and passes it directly into a language interpreter or evaluator without proper sanitization.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)NVD

cpe:2.3:o:ruijie:rg-ew1200r_firmware:3.0\(1\)b11p204:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-ew300_firmware:3.0\(1\)b11p204:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-ew3200gx_firmware:3.0\(1\)b11p204:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-ew1200g_firmware:3.0\(1\)b11p204:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-ew1800gx_firmware:3.0\(1\)b11p204:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-ew300r_firmware:3.0\(1\)b11p204:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-ew1200_firmware:3.0\(1\)b11p204:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-eg3000xe_firmware:3.0\(1\)b11p216:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-eg105g_firmware:3.0\(1\)b11p216:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-eg305gh-p-e_firmware:3.0\(1\)b11p216:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-eg105g-p_firmware:3.0\(1\)b11p216:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-eg3230_firmware:3.0\(1\)b11p216:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-eg1000e_firmware:3.0\(1\)b11p216:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-eg105g-e_firmware:3.0\(1\)b11p216:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-eg105gw\(t\)_firmware:3.0\(1\)b11p216:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-eg105gw-x_firmware:3.0\(1\)b11p216:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-eg2000ce_firmware:3.0\(1\)b11p216:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-eg2100-p_firmware:3.0\(1\)b11p216:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-eg209gs_firmware:3.0\(1\)b11p216:*:*:*:*:*:*:*
cpe:2.3:o:ruijie:rg-eg310gh-e_firmware:3.0\(1\)b11p216:*:*:*:*:*:*:*
+ 45 more

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