# CVE-2022-21809

## Summary

- **CVE ID:** CVE-2022-21809
- **Severity:** CRITICAL
- **CVSS Score:** 9.9 (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)
- **CWE:** CWE-377
- **Published:** May 12, 2022
- **Last Modified:** Mar 13, 2026

## Description

A file write vulnerability exists in the httpd upload.cgi functionality of InHand Networks InRouter302 V3.5.4. A specially-crafted HTTP request can lead to arbitrary file upload. An attacker can upload a malicious file to trigger this vulnerability.

## Affected Products

- InHand Networks — InRouter302 (V3.5.4)

## References

- [CNA](https://www.inhandnetworks.com/upload/attachment/202205/10/InHand-PSA-2022-01.pdf)
- [CNA](https://talosintelligence.com/vulnerability_reports/TALOS-2022-1468)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 1.42%
- **EPSS Percentile:** 80.3

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._