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Fencer Intel
high 8.8

CVE-2021-43164 in the critical feed json

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…

published 4y ago modified 4mo ago also EUVD-2021-30111

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
35.0%
EPSS 35.0% chance of exploitation in 30 days, percentile 98%
public exploits
1
Exploit-DB

Summary

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 updateVersion function in /cgi-bin/luci/api/wireless.

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Timeline

  1. Published
  2. First public exploit (EDB-50930)

Exploit prediction

35.03% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-50930 Ruijie Reyee Mesh Router - Remote Code Execution (RCE) (Authenticated) remote, 2022-05-11
  • packetstormsecurity.com http://packetstormsecurity.com/files/167099/Ruijie-Reyee-Mesh-Router-Remote-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.