What is CVE-2023-31985?

CVE-2023-31985 is a critical-severity vulnerability in Edimax Br-6428ns, classified under Command Injection. CVSS score: 9.8/10. Published 2023-05-12.

How severe is CVE-2023-31985?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Edimax Br-6428ns

CVE-2023-31985

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.

Vulnerability class: Command Injection (OS Command Injection)

Published 2023-05-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.081 (94.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.081 · newest: 0.081 · change: 0.000

Affected products

Edimax Br-6428ns — versions v4
Edimax Br-6428ns Firmware — versions 1.10

Weakness classification (CWE)

CWE-77 — Command Injection

References

github.com/Erebua/CVE/blob/main/N300_BR-6428nS V4/3/Readme.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-31985?: CVE-2023-31985 is a critical-severity vulnerability in Edimax Br-6428ns, classified under Command Injection. CVSS score: 9.8/10. Published 2023-05-12.
How severe is CVE-2023-31985?: Critical severity. CVSS v3 base score is 9.8 out of 10.