CVE-2020-36870

9.2 criticalEPSS 0.6%

Critical (9.2). EPSS 0.6% chance of exploitation in the next 30 days.

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

CVSS 4.0

9.2 critical

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 49% of CVEs (scores of 2026-10-31)
CWE: CWE-94
Published: 2025-11-07
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://www.cnvd.org.cn/flaw/show/CNVD-2021-09650
https://www.ruijie.com.cn/gy/xw-aqtg-gw/86747/
https://www.ruijie.com.cn/gy/xw-aqtg-zw/85638/
https://www.vulncheck.com/advisories/ruijie-networks-eg-and-nbr-series-routers-rce

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