9.9

CVE-2026-50748: ubiquiti inc unifi access application Improper Input Validation

CVSS: 9.9v3.1CriticalAnalyzed
Published 02-07-2026Last modified 02-07-2026
Open JSON

Vulnerability summary

CVE-2026-50748 is a critical (CVSS 9.9) Improper Input Validation vulnerability in ubiquiti inc unifi access application. EPSS estimates a 1.63% chance of exploitation in the next 30 days, higher than 75.8% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.9/10
010
Critical · v3.1 (CVE.org)
EPSS score
1.63%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 02-07-2026
    PublishedVulnerability first disclosed.
  2. 02-07-2026
    Last modifiedVulnerability information updated.

Description

A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi Access Application to execute a Command Injection on the host device.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.63%

Chance of exploitation in the next 30 days

Percentile

76%

Versus all other CVEs

30-day change

0.00 pp

From 1.63% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.63%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubiquiti inc1 product
Ui1 product

2 vendors · 2 products

References

1 links