CVE-2023-49208: Glewlwyd SSO Server Project Glewlwyd SSO Server

Critical severity, CVSS 9.8. EPSS: 0.9% chance of exploitation in the next 30 days.

scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2 credentials validation in webauthn registration.

Affected products

• Glewlwyd SSO Server Project Glewlwyd SSO Server: before 2.7.6 (fixed in 2.7.6)

Published 2023-11-23. Last modified 2026-06-17.