CRITICAL

CVE-2026-77533

CVSS v3

9.9

CRITICAL

EPSS Score

1.4 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-77533 yet.

Full record on NVD

Description

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

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Published: 2026-08-26
Last Modified: 2026-08-26

Frequently asked questions

What is CVE-2026-77533?

Is CVE-2026-77533 actively exploited?

Active exploitation of CVE-2026-77533 has not been confirmed. Its EPSS score was 1.4% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-77533?

CVE-2026-77533 has a CVSS v3 base score of 9.9 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

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