TI-2026-16140 Aliases CVE-2026-19908 GHSA-3c9q-4rh8-prw5

Missing authentication in PAX Technology Q80

LOW 31CWE-306Published 2026-08-14 · Updated 2026-08-17

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00359 29th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
PAX Technology	Q80	2.6.33.6690R	—	No fix listed	CNA

Q80 VendorPAX Technology Affected 2.6.33.6690R Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-19908
2026-10-03 Alias added: GHSA-3c9q-4rh8-prw5

References

Other 1

ZDI-26-524

TI-2023-22504 Command injection in PAX Technology POS terminals CVSS 3.1HIGH 7.8
TI-2023-22505 Link following in PAX Technology POS terminals CVSS 3.1HIGH 7.8
TI-2023-22503 Injection in PAX Technology A920 Pro CVSS 3.1MEDIUM 6.8
TI-2023-22502 PAX Android based POS devices with PayDroid_8.1.0_Sagittarius_V11.1.45_20230314 or… CVSS 3.1MEDIUM 6.8
TI-2020-18455 Pax Technology PAXSTORE v7.0.8_20200511171508 and lower is affected by a token spoofing… CVSS 3.1HIGH 8.2
TI-2020-18453 Pax Technology PAXSTORE v7.0.8_20200511171508 and lower is affected by incorrect access… CVSS 3.1HIGH 8.1

See all 19 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences