Vulnerability · Published Jun 18, 2021 · Assigned by mitre
CVE-2021-33822
High 7.5
In plain English
A high-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 80% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.9%top 19.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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 products (as reported)
References
- https://github.com/shekyan/slowhttptest x_refsource_MISC
- https://www.sing4g.com/product-page/4gee-router-hh70vb-4g-300mbps-2lan-32wifi x_refsource_MISC
- https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33822.md x_refsource_MISC