What is CVE-2023-47455?

CVE-2023-47455 is a critical-severity vulnerability in Tenda Ax1806, classified under Out-of-bounds Write. CVSS score: 9.1/10. Published 2023-11-07.

How severe is CVE-2023-47455?

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

Buffer overflow in Tenda Ax1806

CVE-2023-47455

Tenda AX1806 V1.0.0.1 contains a heap overflow vulnerability in setSchedWifi function, in which the src and v12 are directly obtained from http request parameter schedStartTime and schedEndTime without checking their size.

Vulnerability class: Buffer Overflow

Published 2023-11-07 · 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:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (54.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Tenda Ax1806
Tenda Ax1806 Firmware — versions 1.0.0.1

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/Anza2001/IOT_VULN/blob/main/Tenda/AX1806/setSchedWifi.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-47455?: CVE-2023-47455 is a critical-severity vulnerability in Tenda Ax1806, classified under Out-of-bounds Write. CVSS score: 9.1/10. Published 2023-11-07.
How severe is CVE-2023-47455?: Critical severity. CVSS v3 base score is 9.1 out of 10.