What is CVE-2022-38826?

CVE-2022-38826 is a critical-severity vulnerability in Totolink T6, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-09-16.

How severe is CVE-2022-38826?

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

RCE in Totolink T6

CVE-2022-38826

In TOTOLINK T6 V4.1.5cu.709_B20210518, there is an execute arbitrary command in cstecgi.cgi.

Vulnerability class: Command Injection (OS Command Injection)

Published 2022-09-16 · 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: 0.013 (69.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.013 · change: +0.001

Affected products

Totolink T6 — versions 3
Totolink T6 Firmware — versions 4.1.5cu.709_b20210518

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

github.com/whiter6666/CVE/blob/main/TOTOLINK_T6_V3/setStaticDhcpRules_1.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-38826?: CVE-2022-38826 is a critical-severity vulnerability in Totolink T6, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-09-16.
How severe is CVE-2022-38826?: Critical severity. CVSS v3 base score is 9.8 out of 10.