What is CVE-2022-44178?

CVE-2022-44178 is a critical-severity vulnerability in Tenda Ac18, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2022-11-21.

How severe is CVE-2022-44178?

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

Buffer overflow in Tenda Ac18

CVE-2022-44178

Tenda AC18 V15.03.05.19 is vulnerable to Buffer Overflow. via function formWifiWpsOOB.

Vulnerability class: Buffer Overflow

Published 2022-11-21 · 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: 0.007 (52.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.3% 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

Tenda Ac18
Tenda Ac18 Firmware — versions 15.03.05.19

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

github.com/RobinWang825/IoT_vuln/tree/main/Tenda/AC18/formWifiWpsOOB (Third Party Advisory, Broken Link)

Frequently asked questions

What is CVE-2022-44178?: CVE-2022-44178 is a critical-severity vulnerability in Tenda Ac18, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2022-11-21.
How severe is CVE-2022-44178?: Critical severity. CVSS v3 base score is 9.8 out of 10.