CVE-2026-33000: CWE-20 Improper Input Validation in Ubiquiti Inc UniFi OS Server
CVE-2026-33000 is a critical vulnerability in Ubiquiti Inc's UniFi OS Server involving improper input validation that allows a privileged network user to perform command injection. The vulnerability requires high privileges and network access, and it can lead to complete compromise of confidentiality, integrity, and availability of the affected system. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-33000) affects UniFi OS Server by Ubiquiti Inc and is classified under CWE-20 (Improper Input Validation). It allows a malicious actor with network access and high privileges to exploit improper input validation to execute arbitrary commands on the system. The CVSS v3.1 base score is 9.1, reflecting a critical severity with network attack vector, low attack complexity, required high privileges, no user interaction, and complete impact on confidentiality, integrity, and availability. No patch or official remediation level has been published by the vendor as of the data available.
Potential Impact
Successful exploitation can lead to command injection, allowing an attacker with high privileges and network access to execute arbitrary commands on the UniFi OS Server. This results in full compromise of the system's confidentiality, integrity, and availability. There are no reported exploits in the wild currently.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict network access to trusted users with high privileges and monitor for suspicious activity related to command execution on UniFi OS devices.
CVE-2026-33000: CWE-20 Improper Input Validation in Ubiquiti Inc UniFi OS Server
Description
CVE-2026-33000 is a critical vulnerability in Ubiquiti Inc's UniFi OS Server involving improper input validation that allows a privileged network user to perform command injection. The vulnerability requires high privileges and network access, and it can lead to complete compromise of confidentiality, integrity, and availability of the affected system. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
CVSS v3.1
Score 9.1critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-33000) affects UniFi OS Server by Ubiquiti Inc and is classified under CWE-20 (Improper Input Validation). It allows a malicious actor with network access and high privileges to exploit improper input validation to execute arbitrary commands on the system. The CVSS v3.1 base score is 9.1, reflecting a critical severity with network attack vector, low attack complexity, required high privileges, no user interaction, and complete impact on confidentiality, integrity, and availability. No patch or official remediation level has been published by the vendor as of the data available.
Potential Impact
Successful exploitation can lead to command injection, allowing an attacker with high privileges and network access to execute arbitrary commands on the UniFi OS Server. This results in full compromise of the system's confidentiality, integrity, and availability. There are no reported exploits in the wild currently.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict network access to trusted users with high privileges and monitor for suspicious activity related to command execution on UniFi OS devices.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- hackerone
- Date Reserved
- 2026-03-17T15:00:07.747Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a0fb18ae1370fbb487050d6
Added to database: 05/22/2026, 01:29:46 UTC
Last enriched: 05/29/2026, 20:45:45 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 134
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