UniFi Talk Touch: Active Debug Code
CVE-2025-52663 is a high-severity active debug code vulnerability in UniFi Talk Touch from Ubiquiti, with a CVSS 3.1 base score of 7.3 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 0.24% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of UniFi Talk Touch you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on community.ui.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Ubiquiti | UniFi Talk Touch | Not specified in the record | Not stated |
| Ubiquiti | UniFi Talk Touch Max | Not specified in the record | Not stated |
| Ubiquiti | UniFi Talk G3 Phones | Not specified in the record | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- LowSome restricted data can be read.
- Integrity
- LowLimited modification of data is possible.
- Availability
- LowPerformance or availability is reduced.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L. Scored by CISA (ADP).
Official description
A vulnerability was identified in certain UniFi Talk devices where internal debugging functionality remained unintentionally enabled. This issue could allow an attacker with access to the UniFi Talk management network to invoke internal debug operations through the device API. Affected Products: UniFi Talk Touch (Version 1.21.16 and earlier) UniFi Talk Touch Max (Version 2.21.22 and earlier) UniFi Talk G3 Phones (Version 3.21.26 and earlier) Mitigation: Update the UniFi Talk Touch to Version 1.21.17 or later. Update the UniFi Talk Touch Max to Version 2.21.23 or later. Update the UniFi Talk G3 Phones to Version 3.21.27 or later.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Active Debug Code
The product is released with debugging code still enabled or active.
How developers prevent this class of flaw
- Remove debug code before deploying the application.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Recent Active Debug Code vulnerabilities
- 8.9 High severity
- 8.4 High severity
- 9.9 Critical severity
- 9.8 Critical severity
- 8.1 High severity
- 7.8 High severity
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