7.5

CVE-2021-33820: ui camera_g3_flex_firmware

CVSS: 7.5v3.1HighModified
Published 18-06-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-33820 is a high (CVSS 7.5) vulnerability in ui camera_g3_flex_firmware. EPSS estimates a 1.93% chance of exploitation in the next 30 days, higher than 79.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
1.93%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 18-06-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.93%

Chance of exploitation in the next 30 days

Percentile

80%

Versus all other CVEs

30-day change

0.00 pp

From 1.93% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.93%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Cve Poc

    Maturity: poc

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ui1 product

1 vendor · 1 product

References

3 links