CVEvulnerability
CVE-2021-33822
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-06-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-400
Description
An issue was discovered on 4GEE ROUTER HH70VB Version HH70_E1_02.00_22. Attackers can use slowhttptest tool to send incomplete HTTP request, which could make server keep waiting for the packet to finish the connection, until its resource exhausted. Then the web server is denial-of-service.
Affected configurations
• sing4g 4gee router hh70vb firmware hh70 e1 02.00 22
Related
Weakness · CWE (1)
- CWE-400 Uncontrolled Resource Consumption weakness
References
- https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33822.md Exploit, Third Party Advisory
- https://github.com/shekyan/slowhttptest Third Party Advisory
- https://www.sing4g.com/product-page/4gee-router-hh70vb-4g-300mbps-2lan-32wifi Product, Vendor Advisory
- https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33822.md Exploit, Third Party Advisory
- https://github.com/shekyan/slowhttptest Third Party Advisory
- https://www.sing4g.com/product-page/4gee-router-hh70vb-4g-300mbps-2lan-32wifi Product, Vendor Advisory