What is CVE-2022-26290?

CVE-2022-26290 is a critical-severity vulnerability in Tenda M3, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-03-24.

How severe is CVE-2022-26290?

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

RCE in Tenda M3

CVE-2022-26290

Tenda M3 1.10 V1.0.0.12(4856) was discovered to contain a command injection vulnerability via the component /goform/WriteFacMac.

Vulnerability class: Command Injection (OS Command Injection)

Published 2022-03-24 · 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: 0.026 (84.9th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000

Affected products

Tenda M3
Tenda M3 Firmware — versions 1.0.0.12(4856), 1.0.0.12\(4856\)

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

github.com/GD008/vuln/blob/main/tenda_M3_WriteFacMac/M3_WriteFacMac.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-26290?: CVE-2022-26290 is a critical-severity vulnerability in Tenda M3, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-03-24.
How severe is CVE-2022-26290?: Critical severity. CVSS v3 base score is 9.8 out of 10.