---
cve: "CVE-2026-49295"
severity: "HIGH"
cvss: 7.1
epss: "23%"
vendor: "strukturag"
kev: false
exploited: false
published: "2026-06-19 21:17:01"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T06:21:36+02:00"
---

# CVE-2026-49295

> 7.1 HIGH · 🧪 PoC

## Beschreibung

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.20, a crafted H.265 bitstream can cause an out-of-bounds array write in `decoder_context::process_reference_picture_set()` (`libde265/decctx.cc:1376`). The root cause is a missing aggregate bound check on predicted short-term reference picture set entries. Individual list sizes are validated, but the combined count after predicted RPS construction can exceed the 16-entry `PocStFoll` array, writing at index 16. Version 1.0.20 patches the issue.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 691f3a3c55b3d32478c4a49895dee061a282652b (Commit)

## Referenzen

- <https://github.com/strukturag/libde265/security/advisories/GHSA-g2rg-wj66-w594>
- <https://github.com/strukturag/libde265/commit/691f3a3c55b3d32478c4a49895dee061a282652b>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-49295) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_