---
cve: "CVE-2024-56521"
severity: "CRITICAL"
cvss: 9.8
epss: "76%"
vendor: "Tecnick"
kev: false
exploited: false
published: "2024-12-27 00:00:00"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T10:56:26+02:00"
---

# CVE-2024-56521

> 9.8 CRITICAL · 🧪 PoC

## Beschreibung

An issue was discovered in TCPDF before 6.8.0. If libcurl is used, CURLOPT_SSL_VERIFYHOST and CURLOPT_SSL_VERIFYPEER are set unsafely.

## 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)

- 14ffa0e308f5634aa2489568b4b90b24073b6731 (Commit)
- aab43ab0a824e956276141a28a24c7c0be20f554 (Commit)

## Referenzen

- <https://tcpdf.org>
- <https://github.com/tecnickcom/TCPDF/compare/6.7.8...6.8.0>
- <https://github.com/tecnickcom/TCPDF/commit/aab43ab0a824e956276141a28a24c7c0be20f554>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2024-56521) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_