---
cve: "CVE-2020-37121"
severity: "MEDIUM"
cvss: 6.7
epss: "0.2%"
vendor: "Code::Blocks"
kev: false
exploited: false
published: "2026-02-05 17:16:06"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-22T03:07:17+02:00"
---

# CVE-2020-37121

> 6.7 MEDIUM

## Beschreibung

CODE::BLOCKS 16.01 contains a buffer overflow vulnerability that allows attackers to execute arbitrary code by overwriting Structured Exception Handler with crafted Unicode characters. Attackers can create a malicious text file with 1982 bytes of buffer and shellcode to trigger remote code execution.

## CVSS-Vektor

```
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |

## Referenzen

- <https://nutcrackerssecurity.github.io/posts/windows-exploit-dev-part-7/>
- <https://www.codeblocks.org/>
- <https://sourceforge.net/projects/codeblocks/>
- <https://www.vulncheck.com/advisories/codeblocks-buffer-overflow-seh-unicode>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2020-37121) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_