---
cve: "CVE-2025-59375"
severity: "HIGH"
cvss: 7.5
epss: "1.3%"
vendor: "libexpat project"
kev: false
exploited: false
published: "2025-09-15 03:15:40"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T15:23:35+02:00"
---

# CVE-2025-59375

> 7.5 HIGH · 🧪 PoC

## Beschreibung

libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:H/RL:T/RC:C
```

| 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)

- 7643f96bd5b9f5d3b26ea112519e05e17ef91cfb (Commit)

## Referenzen

- <https://github.com/libexpat/libexpat/issues/1018>
- <https://github.com/libexpat/libexpat/pull/1034>
- <https://github.com/libexpat/libexpat/blob/676a4c531ec768732fac215da9730b5f50fbd2bf/expat/Changes#L45-L74>
- <https://issues.oss-fuzz.com/issues/439133977>
- <https://github.com/libexpat/libexpat/blob/R_2_7_2/expat/Changes>
- <http://www.openwall.com/lists/oss-security/2025/09/16/2>
- <http://www.openwall.com/lists/oss-security/2026/05/01/5>
- <https://cert-portal.siemens.com/productcert/html/ssa-082556.html>
- <https://cert-portal.siemens.com/productcert/html/ssa-089022.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-59375) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_