---
cve: "CVE-2025-12343"
severity: "LOW"
cvss: 3.3
epss: "15%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2026-02-18 21:16:20"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-16T05:05:37+02:00"
---

# CVE-2025-12343

> 3.3 LOW

## Beschreibung

A flaw was found in FFmpeg’s TensorFlow backend within the libavfilter/dnn_backend_tf.c source file. The issue occurs in the dnn_execute_model_tf() function, where a task object is freed multiple times in certain error-handling paths. This redundant memory deallocation can lead to a double-free condition, potentially causing FFmpeg or any application using it to crash when processing TensorFlow-based DNN models. This results in a denial-of-service scenario but does not allow arbitrary code execution under normal conditions.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 638b521c7b09e00514aa13ade43c389b4b40ddfd (Commit)
- 638b521c7b09e00514aa13ade43c389b4b40ddfd (Commit)

## Referenzen

- <https://access.redhat.com/security/cve/CVE-2025-12343>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2406533>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-12343) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_