---
cve: "CVE-2022-22827"
severity: "HIGH"
cvss: 8.8
epss: "2.8%"
vendor: "n/a"
kev: false
exploited: false
published: "2022-01-10 14:12:57"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-16T12:49:15+02:00"
---

# CVE-2022-22827

> 8.8 HIGH · 🧪 PoC

## Beschreibung

storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 | Erforderlich | good |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 57c7da69b78e3698e112a6b5da19d5109b8232d1 (Commit)

## Referenzen

- <https://github.com/libexpat/libexpat/pull/539>
- <http://www.openwall.com/lists/oss-security/2022/01/17/3>
- <https://www.tenable.com/security/tns-2022-05>
- <https://www.debian.org/security/2022/dsa-5073>
- <https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf>
- <https://security.gentoo.org/glsa/202209-24>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2022-22827) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_