What is CVE-2022-43259?

CVE-2022-43259 is a high-severity vulnerability in Tenda Ac15, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2022-10-18.

How severe is CVE-2022-43259?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Tenda Ac15

CVE-2022-43259

Tenda AC15 V15.03.05.18 was discovered to contain a stack overflow via the timeZone parameter in the form_fast_setting_wifi_set function.

Vulnerability class: Buffer Overflow

Published 2022-10-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.008 (54.9th percentile), scored 2026-10-04.

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 Ac15
Tenda Ac15 Firmware — versions 15.03.05.18, 15.03.05.19

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

drive.google.com/file/d/1VjYjZKv7MJ69hGPG-xD0xublUw-taq4w/view (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-43259?: CVE-2022-43259 is a high-severity vulnerability in Tenda Ac15, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2022-10-18.
How severe is CVE-2022-43259?: High severity. CVSS v3 base score is 7.5 out of 10.