CVE-2020-36870 Ruijie Gateway EG & NBR Models v11.1(6)B9P1 - 11.9(4)B12P1 RCE
Attackers can execute arbitrary commands on Ruijie Gateways by exploiting front-end code when specific features like guest authentication are enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-36870?
CVE-2020-36870 is a critical code injection vulnerability in Beijing Star-Net Ruijie Network Technology Co., Ltd. EG3210, published on 7 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-94
Which versions are affected by CVE-2020-36870?
How do I fix CVE-2020-36870?
No fix has been published for CVE-2020-36870 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2020-36870 being exploited?
There is no known exploitation of CVE-2020-36870 in the wild and no public exploit code.
Sources
Also known as GHSA-j892-g9v8-f728.