CVE-2021-33820

Public Exploit

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.

7.5

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.56%

Vendor Advisory ui.com

Affected: n/a n/a

References

Link	Tags
https://store.ui.com/collections/unifi-protect-cameras/products/unifi-video-g3-flex-camera	product vendor advisory
https://linuxhint.com/hping3/	third party advisory
https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33820.md	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-33820?: CVE-2021-33820 has been scored as a high severity vulnerability.
How to fix CVE-2021-33820?: To fix CVE-2021-33820, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-33820 being actively exploited in the wild?: It is possible that CVE-2021-33820 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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