High severity7.5NVD Advisory· Published Jun 18, 2021· Updated Jun 17, 2026
CVE-2021-33822
CVE-2021-33822
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- 4GEE/ROUTER HH70VBdescription
- cpe:2.3:o:sing4g:4gee_router_hh70vb_firmware:hh70_e1_02.00_22:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
2- github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33822.mdnvdExploitThird Party Advisory
- www.sing4g.com/product-page/4gee-router-hh70vb-4g-300mbps-2lan-32wifinvdProductVendor Advisory
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