CVE-2020-36870 (GCVE-0-2020-36870)
Vulnerability from cvelistv5 – Published: 2025-11-07 21:52 – Updated: 2025-11-20 21:32 X_Known Exploited VulnerabilityTitle
Ruijie Gateway EG & NBR Models v11.1(6)B9P1 - 11.9(4)B12P1 RCE
Summary
Various Ruijie Gateway EG and NBR models firmware versions 11.1(6)B9P1 < 11.9(4)B12P1 contain a code execution vulnerability in the EWEB management system that can be abused via front-end functionality. Attackers can exploit front-end code when features such as guest authentication, local server authentication, or screen mirroring are enabled to gain access or execute commands on affected devices. Exploitation evidence was first observed by the Shadowserver Foundation on 2025-02-05 UTC.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-13 16:10 UTC
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.ruijie.com.cn/gy/xw-aqtg-zw/85638/ | vendor-advisorypatch |
| https://www.ruijie.com.cn/gy/xw-aqtg-gw/86747/ | vendor-advisorypatch |
| https://www.cnvd.org.cn/flaw/show/CNVD-2021-09650 | government-resourcethird-party-advisory |
| https://www.vulncheck.com/advisories/ruijie-netwo… | third-party-advisory |
Impacted products
37 products
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: bcc9faff-a152-483a-a04d-6f6ae36d2ee5
Exploited: Yes
Timestamps
First Seen: 2026-01-08
Asserted: 2026-01-08
Last Seen: 2026-09-07
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Ruijie Networks / NBR | Class: router | IoT: no | In CISA KEV: no | Honeypot connections on 2026-09-07: 4
Evidence
Type: Honeypot
Signal: In The Wild Attempts
Confidence: 70%
Source: shadowserver
Details
| 1D | 2 |
|---|---|
| Iot | no |
| Feed | Shadowserver Foundation honeypot/exploited-vulnerabilities |
| Type | http-scan |
| Class | router |
| 7D Avg | 4 |
| Vendor | Ruijie Networks |
| 30D Avg | 2 |
| 90D Avg | 2 |
| Product | NBR |
| Cisa Kev | no |
| Connections | 4 |
| Observation Date | 2026-09-07 |
| Vulnerability Class | None |
| Vulnerability Score | None |
| Vulnerability Severity | None |
References
Created: 2026-07-01 05:53 UTC
| Updated: 2026-09-09 01:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: e3fb971d-d395-4a09-97c6-de1375041378
Exploited: Yes
Timestamps
First Seen: 2026-01-24
Asserted: 2026-01-24
Scope
Notes: KEVIntel entry: Ruijie Gateway EG & NBR Models v11.1(6)B9P1 - 11.9(4)B12P1 RCE | Affected: Beijing Star-Net Ruijie Network Technology Co., Ltd. / RG-EG1000C, RG-EG2000F, RG-EG2000K, RG-EG2000L, RG-EG2000CE, RG-EG2000SE, RG-EG2000GE, RG-EG2000XE, RG-EG2000UE, RG-EG3000CE, RG-EG3000SE, RG-EG3000GE, RG-EG3000ME, RG-EG3000UE, RG-EG3000XE, RG-EG2100-P, EG3210, EG3220, EG3230, EG3250, NBR108G-P, NBR1000G-E, NBR1300G-E, NBR1700G-E, NBR2100G-E, NBR2500D-E, NBR3000D-E, NBR6120-E, NBR6135-E, NBR6205-E, NBR6210-E, NBR6215-E, NBR800G, NBR950G, NBR1000G-C, NBR2000G-C, NBR3000G-S | CVSS: 9.2 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: True
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | Ruijie Gateway EG & NBR Models v11.1(6)B9P1 - 11.9(4)B12P1 RCE |
| Vendor | Beijing Star-Net Ruijie Network Technology Co., Ltd. |
| Product | RG-EG1000C, RG-EG2000F, RG-EG2000K, RG-EG2000L, RG-EG2000CE, RG-EG2000SE, RG-EG2000GE, RG-EG2000XE, RG-EG2000UE, RG-EG3000CE, RG-EG3000SE, RG-EG3000GE, RG-EG3000ME, RG-EG3000UE, RG-EG3000XE, RG-EG2100-P, EG3210, EG3220, EG3230, EG3250, NBR108G-P, NBR1000G-E, NBR1300G-E, NBR1700G-E, NBR2100G-E, NBR2500D-E, NBR3000D-E, NBR6120-E, NBR6135-E, NBR6205-E, NBR6210-E, NBR6215-E, NBR800G, NBR950G, NBR1000G-C, NBR2000G-C, NBR3000G-S |
| Added Date | 2026-01-24T00:00:00.000Z |
| Cvss Score | 9.2 |
| Epss Score | None |
| Cvss Severity | CRITICAL |
| Epss Percentile | None |
| Used In Malware | unknown |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | True |
References
Created: 2026-06-19 12:42 UTC
| Updated: 2026-06-19 12:42 UTC
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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