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Fencer Vulns
critical 9.8

CVE-2023-31985 json

A Command Injection vulnerability in Edimax Wireless Router N300 Firmware BR-6428NS_v4 allows attacker to execute arbitrary code via the fo…

published 2023-05-12 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-36274

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
8.1%
EPSS 8.1% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

A Command Injection vulnerability in Edimax Wireless Router N300 Firmware BR-6428NS_v4 allows attacker to execute arbitrary code via the formAccept function in /bin/webs without any limitations.

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
21 mo ago

Exploit prediction

8.08% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/Erebua/CVE/blob/main/N300_BR-6428nS%20V4/3/Readme.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness
  • CWE-77 Improper Neutralization of Special Elements used in a Command

References

Sources

Fencer Vulns 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.