---
cve: "CVE-2026-45130"
severity: "MEDIUM"
cvss: 6.6
epss: "0.2%"
vendor: "vim"
kev: false
exploited: false
published: "2026-05-08 22:42:35"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T23:14:21+02:00"
---

# CVE-2026-45130

> 6.6 MEDIUM · 🧪 PoC

## Beschreibung

Vim is an open source, command line text editor. Prior to version 9.2.0450, a heap buffer overflow exists in read_compound() in src/spellfile.c when loading a crafted spell file (.spl) with UTF-8 encoding active. An attacker-controlled length field in the spell file's compound section overflows a 32-bit signed integer multiplication, causing a small buffer to be allocated for a write loop that runs many iterations, overflowing the heap. Because the 'spelllang' option can be set from a modeline, a text file modeline can trigger spell file loading if a malicious .spl file has been planted on the runtimepath. This issue has been patched in version 9.2.0450.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 92993329178cb1f72d700fff45ca86e1c2d369f8 (Commit)

## Referenzen

- <https://github.com/vim/vim/security/advisories/GHSA-q4jv-r9gj-6cwv>
- <https://github.com/vim/vim/commit/92993329178cb1f72d700fff45ca86e1c2d369f8>
- <https://github.com/vim/vim/releases/tag/v9.2.0450>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-45130) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_