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Vulnerability record · CVE-2026-19908 · published 14 August 2026

CVE-2026-19908: Missing authentication for critical function vulnerability

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.

7.1 CVSS 3.0 High EPSS 0.36% · top 72.9% CWE-306 · Missing authentication for critical function Deferred
7.1CVSS 3.0 base score
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
1 Sep 2026Last modified by NVD

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.

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

References

LinkTags
https://www.zerodayinitiative.com/advisories/ZDI-26-524/

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Source: NIST National Vulnerability Database (record CVE-2026-19908), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.