---
cve: "CVE-2026-40335"
severity: "MEDIUM"
cvss: 5.2
epss: "20%"
vendor: "gphoto"
kev: false
exploited: false
published: "2026-04-17 23:19:16"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T05:15:53+02:00"
---

# CVE-2026-40335

> 5.2 MEDIUM · 🧪 PoC

## Beschreibung

libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read in `ptp_unpack_DPV()` in `camlibs/ptp2/ptp-pack.c` (lines 622–629). The UINT128 and INT128 cases advance `*offset += 16` without verifying that 16 bytes remain in the buffer. The entry check at line 609 only guarantees `*offset < total` (at least 1 byte available), leaving up to 15 bytes unvalidated. Commit 433bde9888d70aa726e32744cd751d7dbe94379a patches the issue.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 433bde9888d70aa726e32744cd751d7dbe94379a (Commit)

## Referenzen

- <https://github.com/gphoto/libgphoto2/security/advisories/GHSA-g4g5-c2x9-cqfj>
- <https://github.com/gphoto/libgphoto2/commit/433bde9888d70aa726e32744cd751d7dbe94379a>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-40335) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_