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01 Record

CVE-2021-43160

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 switchFastDhcp function in

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector

02 Description

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 switchFastDhcp function in

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.77% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 77.7% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-07-09.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2022-05-04 00:08Z4 YR AGO
Last updated
2026-07-09 00:15Z3 MO AGO
Reserved
2021-11-01
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')Class
Data version
5.2
Document digest
8f1d9ebcbcde1d4507bb8377ff4fa6bbfc3242a424dba219f80b5f27d751a0e0

05 Affected products

VendorProductVersionsPlatforms
ruijienetworksreyeeosNot specified—
ruijienetworksrg-ew1200Not specified—
ruijienetworksrg-ew1200g_proNot specified—
ruijienetworksrg-ew1800gx_proNot specified—
ruijienetworksrg-ew300_proNot specified—
ruijienetworksrg-ew3200gx_proNot specified—

06 References