---
cve: "CVE-2025-55181"
severity: "MEDIUM"
cvss: 5.3
epss: "29%"
vendor: "Facebook"
kev: false
exploited: false
published: "2025-12-02 22:16:08"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T17:27:55+02:00"
---

# CVE-2025-55181

> 5.3 MEDIUM · 🧪 PoC

## Beschreibung

Sending an HTTP request/response body with greater than 2^31 bytes triggers an infinite loop in proxygen::coro::HTTPQuicCoroSession which blocks the backing event loop and unconditionally appends data to a std::vector per-loop iteration. This issue leads to unbounded memory growth and eventually causes the process to run out of memory.

## CVSS-Vektor

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

| 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 | Gering | warn |

## Patch verfügbar (OSV)

- 17689399ef99b7c3d3a8b2b768b1dba1a4b72f8f (Commit)

## Referenzen

- <https://www.facebook.com/security/advisories/cve-2025-55181>
- <https://github.com/facebook/proxygen/commit/17689399ef99b7c3d3a8b2b768b1dba1a4b72f8f>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-55181) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_