CVE-2021-33820
HighPublic PoC
Published: 18 June 2021
Published
18 June 2021
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.0056
68.7th percentile
Risk Priority
15
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-33820 is a high-severity an unspecified weakness vulnerability in Ui Camera G3 Flex Firmware. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 31.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-20495
Vulnerability details
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.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
ui
camera g3 flex firmware
uvc.v4.30.0.67
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.