CVEvulnerability
CVE-2021-33818
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 in UniFi Protect G3 FLEX Camera Version UVC.v4.30.0.67. 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
• ui camera g3 flex firmware uvc.v4.30.0.67
Related
Weakness · CWE (1)
- CWE-400 Uncontrolled Resource Consumption weakness
References
- https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33818.md Exploit, Third Party Advisory
- https://github.com/shekyan/slowhttptest Third Party Advisory
- https://store.ui.com/collections/unifi-protect-cameras/products/unifi-video-g3-flex-camera Product, Vendor Advisory
- https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33818.md Exploit, Third Party Advisory
- https://github.com/shekyan/slowhttptest Third Party Advisory
- https://store.ui.com/collections/unifi-protect-cameras/products/unifi-video-g3-flex-camera Product, Vendor Advisory