What is CVE-2026-25550?

CVE-2026-25550 is a critical-severity vulnerability in Seagull Software, Llc. Bartender 2010, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-06-04.

How severe is CVE-2026-25550?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Seagull Software, Llc. Bartender 2010

CVE-2026-25550

Seagull Software BarTender 2010, 2016, and 2019 contain an unauthenticated remote code execution vulnerability in the .NET Remoting service exposed on TCP port 7375 via BtSystem.Service.exe. The service registers an unauthenticated singlet…

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Seagull Software, Llc. Bartender 2010 — versions 0
Seagull Software, Llc. Bartender 2016 — versions 0
Seagull Software, Llc. Bartender 2019 — versions 0

Weakness classification (CWE)

References

disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-25550?: CVE-2026-25550 is a critical-severity vulnerability in Seagull Software, Llc. Bartender 2010, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-06-04.
How severe is CVE-2026-25550?: Critical severity. CVSS v3 base score is 9.8 out of 10.