cvedb.io
CVE-2021-40818
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2021-09-08T22:15:11.383 · Last modified 2026-06-17T04:07:28.683

Summary

scheme/webauthn.c in Glewlwyd SSO server through 2.5.3 has a buffer overflow during FIDO2 signature validation in webauthn registration.

Affected products

glewlwyd_sso_server_project — glewlwyd_sso_server

Does this affect you?

Add your gear to cvedb and we'll alert you only when glewlwyd_sso_server_project ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.