---
cve: "CVE-2026-40334"
severity: "LOW"
cvss: 3.5
epss: "19%"
vendor: "gphoto"
kev: false
exploited: false
published: "2026-04-18 00:16:37"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T06:37:56+02:00"
---

# CVE-2026-40334

> 3.5 LOW · 🧪 PoC

## Beschreibung

libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, a missing null terminator exists in ptp_unpack_Canon_FE() in camlibs/ptp2/ptp-pack.c (line 1377). The function copies a filename into a 13-byte buffer using strncpy without explicitly null-terminating the result. If the source data is exactly 13 bytes with no null terminator, the buffer is left unterminated, leading to out-of-bounds reads in any subsequent string operation. Commit 259fc7d3bfe534ce4b114c464f55b448670ab873 patches the issue.

## CVSS-Vektor

```
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/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 | Gering | warn |
| I Integrität | Keine | good |
| A Verfügbarkeit | Gering | warn |

## Patch verfügbar (OSV)

- 259fc7d3bfe534ce4b114c464f55b448670ab873 (Commit)

## Referenzen

- <https://github.com/gphoto/libgphoto2/security/advisories/GHSA-ph87-cc3j-c6hm>
- <https://github.com/gphoto/libgphoto2/commit/259fc7d3bfe534ce4b114c464f55b448670ab873>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-40334) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_