---
cve: "CVE-2026-52295"
severity: "LOW"
cvss: 2.9
epss: "12%"
vendor: "FFMPEG"
kev: false
exploited: false
published: "2026-09-01 18:17:43"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T07:48:35+02:00"
---

# CVE-2026-52295

> 2.9 LOW · 🧪 PoC

## Beschreibung

FFmpeg before 9.0 has an out-of-bounds read because the copied extradata lacked required padding before GetBitContext-based access in libavformat/iamf_writer.c.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Hoch | good |
| 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)

- d32b387f2b0a484599d4587d651891f0c63c4238 (Commit)
- 8439e0203744a30d280668fcd086f74ed5001da1 (Commit)

## Referenzen

- <https://github.com/Kenan-Kamel/VulnerabilitiesReference/tree/main/FFmpeg/ExtradataPadding>
- <https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22988>
- <https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/8439e0203744a30d280668fcd086f74ed5001da1>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-52295) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_