High severity7.5NVD Advisory· Published Jun 18, 2021· Updated Jun 17, 2026
CVE-2021-33820
CVE-2021-33820
Description
An issue was discovered in UniFi Protect G3 FLEX Camera Version UVC.v4.30.0.67.Attacker could send a huge amount of TCP SYN packet to make web service's 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- UniFi/Protect G3 FLEX Cameradescription
- Range: = UVC.v4.30.0.67
Patches
Vulnerability mechanics
References
3- github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33820.mdnvdExploitThird Party Advisory
- linuxhint.com/hping3/nvdThird Party Advisory
- store.ui.com/collections/unifi-protect-cameras/products/unifi-video-g3-flex-cameranvdProductVendor Advisory
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