Vulnerability in Ui Camera G3 Flex
CVE-2021-33820
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.019 (79.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- Ui Camera G3 Flex
- Ui Camera G3 Flex Firmware — versions uvc.v4.30.0.67
Public proof-of-concept exploits
References
- store.ui.com/collections/unifi-protect-cameras/products/unifi-video-g3-flex-cam… (Product, Vendor Advisory)
- linuxhint.com/hping3/ (Third Party Advisory)
- github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33820.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-33820?
- CVE-2021-33820 is a high-severity vulnerability in Ui Camera G3 Flex. CVSS score: 7.5/10. Published 2021-06-18.
- How severe is CVE-2021-33820?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-33820 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.