---
cve: "CVE-2021-27770"
severity: "MEDIUM"
cvss: 6.8
epss: "0.7%"
vendor: "HCL Software"
kev: false
exploited: false
published: "2022-05-12 22:15:11"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-10-04T13:22:17+02:00"
---

# CVE-2021-27770

> 6.8 MEDIUM

## Beschreibung

The vulnerability was discovered within the “FaviconService”. The service takes a base64-encoded URL which is then requested by the webserver. We assume this service is used by the “meetings”-function where users can specify an external URL where the online meeting will take place.

## CVSS-Vektor

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

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

## Referenzen

- <https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2021-27770) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_