CVE-2021-33822
HIGH
7.5
CVSS Score
Published: June 18, 2021 at 06:47 PM UTC
Updated: June 17, 2026 at 03:55 AM UTC
2 products affected across 1 vendor4GEE Router HH70VB Firmware4Gee Router Hh70Vb
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Severity
HIGH7.5
Exploit prediction
EPSS 2%
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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
80%
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33822.mdx_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/shekyan/slowhttptestx_refsource_MISCProductVendor Advisory
Source: [email protected]
https://www.sing4g.com/product-page/4gee-router-hh70vb-4g-300mbps-2lan-32wifiCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-400
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