What is CVE-2022-44249?

CVE-2022-44249 is a critical-severity vulnerability in Totolink Lr350, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-11-23.

How severe is CVE-2022-44249?

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

RCE in Totolink Lr350

CVE-2022-44249

TOTOLINK NR1800X V9.1.0u.6279_B20210910 contains a command injection via the FileName parameter in the UploadFirmwareFile function.

Vulnerability class: Command Injection (OS Command Injection)

Published 2022-11-23 · 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: 0.018 (77.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: +0.000

Affected products

Totolink Lr350
Totolink Lr350 Firmware — versions 9.3.5u.6369_b20220309

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

brief-nymphea-813.notion.site/LR350-command-injection-UploadFirmwareFile-f006f7… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-44249?: CVE-2022-44249 is a critical-severity vulnerability in Totolink Lr350, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-11-23.
How severe is CVE-2022-44249?: Critical severity. CVSS v3 base score is 9.8 out of 10.