CVE-2021-43159

A Remote Code Execution (RCE) vulnerability exists in Ruijie Networks Ruijie RG-EW Series Routers...

8.8 High

A Remote Code Execution (RCE) vulnerability exists in Ruijie Networks Ruijie RG-EW Series Routers up to ReyeeOS 1.55.1915 / EW_3.0(1)B11P55 via the setSessionTime function in /cgi-bin/luci/api/common..

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.90%Down 2.0 points since May 4, 2022

What each source reports

NVD Score used 8.8

Record: CVE-2021-43159
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 6.5 MediumAV:N/AC:L/Au:S/C:P/I:P/A:P
Weakness: CWE-77
Updated: 2026-11-02

CVE List No score

Record: CVE-2021-43159
Updated: 2026-11-02

EUVDEUVD-2021-30106 No score

Record: EUVD-2021-30106
Updated: 2026-11-02

GitHub AdvisoriesGHSA-95gw-4qc2-xv85 8.8

A Remote Code Execution (RCE) vulnerability exists in Ruijie Networks Ruijie RG-EW Series Routers...

Record: GHSA-95gw-4qc2-xv85
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-77
Updated: 2026-11-02

Affected products

ruijienetworks reyeeos

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-43159 is a high vulnerability (CVSS 8.8) in Ruijienetworks Reyeeos, published May 4, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.90%, the 79th percentile. No source names a fixed version.