CVE-2026-19908 PAX Technology Q80 XCB Daemon Missing Authentication Vulnerability
Network-adjacent attackers can access the XCB daemon without authentication to disclose sensitive information and modify configuration on PAX Technology Q80 devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19908?
CVE-2026-19908 is a high-severity missing authorization vulnerability in PAX Technology Q80, published on 14 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
PAX Technology Q80 XCB Daemon Missing Authentication Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information and modify configuration on affected installations of PAX Technology Q80. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the XCB daemon. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-30584.
Weakness: CWE-306
Which versions are affected by CVE-2026-19908?
How do I fix CVE-2026-19908?
No fix has been published for CVE-2026-19908 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-19908 being exploited?
There is no known exploitation of CVE-2026-19908 in the wild and no public exploit code.
Sources
Also known as GHSA-3c9q-4rh8-prw5.