What is CVE-2022-28560?

CVE-2022-28560 is a critical-severity vulnerability in Tenda Ac9, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-05-03.

How severe is CVE-2022-28560?

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

Buffer overflow in Tenda Ac9

CVE-2022-28560

There is a stack overflow vulnerability in the goform/fast_setting_wifi_set function in the httpd service of Tenda ac9 15.03.2.21_cn router. An attacker can obtain a stable shell through a carefully constructed payload

Vulnerability class: Buffer Overflow

Published 2022-05-03 · 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: 0.017 (76.3th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: +0.000

Affected products

Tenda Ac9
Tenda Ac9 Firmware — versions 15.03.2.21_cn

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/iot-firmeware/-Router-vulnerability/tree/main/Tenda AC9 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-28560?: CVE-2022-28560 is a critical-severity vulnerability in Tenda Ac9, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-05-03.
How severe is CVE-2022-28560?: Critical severity. CVSS v3 base score is 9.8 out of 10.