---
cve: "CVE-2025-53521"
severity: "CRITICAL"
cvss: 9.3
epss: "2.2%"
vendor: "F5"
kev: true
exploited: true
published: "2025-10-15 14:15:48"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T20:15:46+02:00"
---

# CVE-2025-53521

> 9.3 CRITICAL · ⚠️ CISA KEV (163 Tage) · 🔓 Exploited

## Beschreibung

When a BIG-IP APM access policy is configured on a virtual server, specific malicious traffic can lead to Remote Code Execution (RCE).  

Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Referenzen

- <https://my.f5.com/manage/s/article/K000156741>
- <https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-53521>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-53521) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_