CVE-2026-34910 — CRITICAL (10.0)

Q: What is CVE-2026-34910?

CVE-2026-34910 is a vulnerability with a CVSS score of 10.0 (CRITICAL). A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.

Q: How severe is CVE-2026-34910?

CVE-2026-34910 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2026-34910?

Check the references section above for vendor advisories and patch information. Affected products include: Ui Unifi Os Server, Ui Unifi Cloud Gateway Industrial Firmware, Ui Unifi Cloud Gateway Industrial, Ui Unifi Dream Machine Firmware, Ui Unifi Dream Machine.

Vulnerability Description

A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.

CVSS Score

10.0

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Ui	Unifi Os Server	< 5.0.8
Ui	Unifi Cloud Gateway Industrial Firmware	< 5.1.12
Ui	Unifi Cloud Gateway Industrial	-
Ui	Unifi Dream Machine Firmware	< 5.1.12
Ui	Unifi Dream Machine	-
Ui	Unifi Dream Machine Pro Firmware	< 5.1.12
Ui	Unifi Dream Machine Pro	-
Ui	Unifi Dream Machine Special Edition Firmware	< 5.1.12
Ui	Unifi Dream Machine Special Edition	-
Ui	Unifi Dream Machine Pro Max Firmware	< 5.1.12
Ui	Unifi Dream Machine Pro Max	-
Ui	Enterprise Fortress Gateway Firmware	< 5.1.12
Ui	Enterprise Fortress Gateway	-
Ui	Unifi Dream Wall Firmware	< 5.1.12
Ui	Unifi Dream Wall	-
Ui	Unifi Dream Router Firmware	< 5.1.12
Ui	Unifi Dream Router	-
Ui	Unifi Dream Router 7 Firmware	< 5.1.12
Ui	Unifi Dream Router 7	-
Ui	Unifi Express 7 Firmware	< 5.1.12

Related Weaknesses (CWE)

CWE-20

References

https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cPatchVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-US Government Resource
https://www.pwndefend.com/2026/06/09/cve-2026-34910-exploitation-itw-building-a-ExploitThird Party Advisory

FAQ

What is CVE-2026-34910?

CVE-2026-34910 is a vulnerability with a CVSS score of 10.0 (CRITICAL). A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.

How severe is CVE-2026-34910?

CVE-2026-34910 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-34910?

Check the references section above for vendor advisories and patch information. Affected products include: Ui Unifi Os Server, Ui Unifi Cloud Gateway Industrial Firmware, Ui Unifi Cloud Gateway Industrial, Ui Unifi Dream Machine Firmware, Ui Unifi Dream Machine.