Is CVE-2020-36870 actively exploited?

Yes. CVE-2020-36870 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2020-36870 be exploited remotely?

The attack vector of CVE-2020-36870 has not been classified yet.

What is the CVSS score of CVE-2020-36870?

CVE-2020-36870 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2020-36870

UNKNOWNCISA KEVIN THE WILD

CVE-2020-36870

Published: April 11, 2026

EPSS:0.10%probability of exploitation in 30 daysPercentile:28.2th

Official Description

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.

NVD Source

Risk Analysis

This vulnerability in various Ruijie Gateway EG and NBR models allows for code execution within the EWEB management system. Attackers can exploit front-end functionality when features like guest authentication, local server authentication, or screen mirroring are enabled. This is a critical vulnerability as it is confirmed to be actively exploited in the wild by CISA.

Active exploitation of this vulnerability has been observed in the wild, as confirmed by CISA's KEV catalog. The flaw can be exploited remotely via front-end functionality.

Recommended Action

Upgrade the firmware of affected Ruijie Gateway EG and NBR models to version 11.9(4)B12P1 or later. Disable unnecessary features like guest authentication, local server authentication, or screen mirroring if not in use.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2020-36870 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2020-36870 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.