---
cve: "CVE-2022-45494"
severity: "HIGH"
cvss: 7.8
epss: "0.4%"
vendor: "n/a"
kev: false
exploited: false
published: "2023-01-31 22:15:08"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-07T12:25:21+02:00"
---

# CVE-2022-45494

> 7.8 HIGH · 🧪 PoC

## Beschreibung

Buffer overflow vulnerability in function json_parse_object in sheredom json.h before commit 0825301a07cbf51653882bf2b153cc81fdadf41 (November 14, 2022) allows attackers to code arbitrary code and gain escalated privileges.

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **poc**
  - Automatable: **no**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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 | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Referenzen

- <https://github.com/sheredom/json.h>
- <https://github.com/sheredom/json.h/issues/93>
- <https://github.com/sheredom/json.h/issues/97>
- <https://github.com/hyrathon/trophies/security/advisories/GHSA-wvpq-p7pp-cj6m>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2022-45494/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_