---
cve: "CVE-2025-27810"
severity: "MEDIUM"
cvss: 5.4
epss: "29%"
vendor: "Mbed"
kev: false
exploited: false
published: "2025-03-25 06:15:41"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-12T07:04:43+02:00"
---

# CVE-2025-27810

> 5.4 MEDIUM · 🧪 PoC

## Beschreibung

Mbed TLS before 2.28.10 and 3.x before 3.6.3, in some cases of failed memory allocation or hardware errors, uses uninitialized stack memory to compose the TLS Finished message, potentially leading to authentication bypasses such as replays.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 22098d41c6620ce07cf8a0134d37302355e1e5ef (Commit)

## Referenzen

- <https://github.com/Mbed-TLS/mbedtls/releases>
- <https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-03-2/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-27810) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_