What is CVE-2023-49351?

CVE-2023-49351 is a critical-severity vulnerability in Edimax Br-6478ac, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2024-01-16.

How severe is CVE-2023-49351?

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

Buffer overflow in Edimax Br-6478ac

CVE-2023-49351

A stack-based buffer overflow vulnerability in /bin/webs binary in Edimax BR6478AC V2 firmware veraion v1.23 allows attackers to overwrite other values located on the stack due to an incorrect use of the strcpy() function.

Vulnerability class: Buffer Overflow

Published 2024-01-16 · 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: 0.006 (45.1th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Edimax Br-6478ac — versions v2
Edimax Br-6478ac Firmware — versions 1.23

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/countfatcode/temp/blob/main/formUSBAccount/formUSBAccount.md (Broken Link)

Frequently asked questions

What is CVE-2023-49351?: CVE-2023-49351 is a critical-severity vulnerability in Edimax Br-6478ac, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2024-01-16.
How severe is CVE-2023-49351?: Critical severity. CVSS v3 base score is 9.8 out of 10.