---
cve: "CVE-2026-40340"
severity: "MEDIUM"
cvss: 6.1
epss: "22%"
vendor: "gphoto"
kev: false
exploited: false
published: "2026-04-18 00:16:38"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T07:19:18+02:00"
---

# CVE-2026-40340

> 6.1 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 vulnerability in `ptp_unpack_OI()` in `camlibs/ptp2/ptp-pack.c` (lines 530–563). The function validates `len < PTP_oi_SequenceNumber` (i.e., len < 48) but subsequently accesses offsets 48–56, up to 9 bytes beyond the validated boundary, via the Samsung Galaxy 64-bit objectsize detection heuristic. Commit 7c7f515bc88c3d0c4098ac965d313518e0ccbe33 fixes the issue.

## CVSS-Vektor

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

| 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 | Hoch | bad |

## Patch verfügbar (OSV)

- 7c7f515bc88c3d0c4098ac965d313518e0ccbe33 (Commit)

## Referenzen

- <https://github.com/gphoto/libgphoto2/security/advisories/GHSA-xfw3-xvjp-5wcv>
- <https://github.com/gphoto/libgphoto2/commit/7c7f515bc88c3d0c4098ac965d313518e0ccbe33>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-40340) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_