---
cve: "CVE-2025-49087"
severity: "MEDIUM"
cvss: 4.0
epss: "40%"
vendor: "Mbed"
kev: false
exploited: false
published: "2025-07-20 19:15:24"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-11T09:33:10+02:00"
---

# CVE-2025-49087

> 4.0 MEDIUM · 🧪 PoC

## Beschreibung

In Mbed TLS 3.6.1 through 3.6.3 before 3.6.4, a timing discrepancy in block cipher padding removal allows an attacker to recover the plaintext when PKCS#7 padding mode is used.

## CVSS-Vektor

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

## Patch verfügbar (OSV)

- c765c831e5c2a0971410692f92f7a81d6ec65ec2 (Commit)

## Referenzen

- <https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/>
- <https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-5.md>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-49087) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_