What is CVE-2022-45640?

CVE-2022-45640 is a high-severity vulnerability in Tenda Ac6, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2022-12-01.

How severe is CVE-2022-45640?

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

Buffer overflow in Tenda Ac6

CVE-2022-45640

Tenda Tenda AC6V1.0 V15.03.05.19 is affected by buffer overflow. Causes a denial of service (local).

Vulnerability class: Buffer Overflow

Published 2022-12-01 · 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: 0.011 (63.4th percentile), scored 2026-10-04.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.011 · change: +0.001

Affected products

Tenda Ac6 — versions 1.0
Tenda Ac6 Firmware — versions 15.03.05.19

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/Double-q1015/CVE-vulns/blob/main/tenda_ac6v1.0_vuln/Tenda AC6V1.0 V1… (Exploit, Third Party Advisory)
vulncheck.com/blog/xiongmai-iot-exploitation (Technical Description, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-45640?: CVE-2022-45640 is a high-severity vulnerability in Tenda Ac6, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2022-12-01.
How severe is CVE-2022-45640?: High severity. CVSS v3 base score is 7.5 out of 10.