What is CVE-2023-47678?

CVE-2023-47678 is a critical-severity vulnerability in ASUS Rt-Ac87u. CVSS score: 9.1/10. Published 2023-11-15.

How severe is CVE-2023-47678?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in ASUS Rt-Ac87u

CVE-2023-47678

An improper access control vulnerability exists in RT-AC87U all versions. An attacker may read or write files that are not intended to be accessed by connecting to a target device via tftp.

Published 2023-11-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.007 (54.0th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

ASUS Rt-Ac87u
ASUS Rt-Ac87u Firmware
Asustek Computer Inc. Rt-Ac87u — versions all versions

References

www.asus.com/support/ (Not Applicable)
www.asus.com/event/network/EOL-product/ (Product)
jvn.jp/en/vu/JVNVU96079387/ (Third Party Advisory)

Frequently asked questions

What is CVE-2023-47678?: CVE-2023-47678 is a critical-severity vulnerability in ASUS Rt-Ac87u. CVSS score: 9.1/10. Published 2023-11-15.
How severe is CVE-2023-47678?: Critical severity. CVSS v3 base score is 9.1 out of 10.