---
cve: "CVE-2023-49208"
severity: "CRITICAL"
cvss: 9.8
epss: "0.9%"
vendor: "n/a"
kev: false
exploited: false
published: "2023-11-23 18:15:07"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-22T01:13:32+02:00"
---

# CVE-2023-49208

> 9.8 CRITICAL · 🧪 PoC

## Beschreibung

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

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 11f57ec345b2d12cdf777f694ff33a6a4f10361d (Commit)
- f9d8c06aae8dfe17e761b18b577ff169e059e812 (Commit)

## Referenzen

- <https://github.com/babelouest/glewlwyd/commit/f9d8c06aae8dfe17e761b18b577ff169e059e812>
- <https://github.com/babelouest/glewlwyd/releases/tag/v2.7.6>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-49208) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_