---
cve: "CVE-2024-28757"
severity: "HIGH"
cvss: 7.5
epss: "2%"
vendor: "n/a"
kev: false
exploited: false
published: "2024-03-10 05:15:06"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-11T14:54:24+02:00"
---

# CVE-2024-28757

> 7.5 HIGH · 🧪 PoC

## Beschreibung

libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate).

## CVSS-Vektor

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

## Patch verfügbar (OSV)

- a590b2d5846865412182805b853dd91d18f38c8d (Commit)

## Referenzen

- <https://github.com/libexpat/libexpat/pull/842>
- <https://github.com/libexpat/libexpat/issues/839>
- <https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FPLC6WDSRDUYS7F7JWAOVOHFNOUQ43DD/>
- <https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LKJ7V5F6LJCEQJXDBWGT27J7NAP3E3N7/>
- <https://security.netapp.com/advisory/ntap-20240322-0001/>
- <https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VK2O34GH43NTHBZBN7G5Y6YKJKPUCTBE/>
- <http://www.openwall.com/lists/oss-security/2024/03/15/1>
- <https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FPLC6WDSRDUYS7F7JWAOVOHFNOUQ43DD/>
- <https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LKJ7V5F6LJCEQJXDBWGT27J7NAP3E3N7/>
- <https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VK2O34GH43NTHBZBN7G5Y6YKJKPUCTBE/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2024-28757) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_