---
cve: "CVE-2026-74528"
severity: "HIGH"
cvss: 8.0
epss: "23%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-08-15 12:27:44"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-12T05:24:17+02:00"
---

# CVE-2026-74528

> 8.0 HIGH

## Beschreibung

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_sync: hold conn in hci_past_sync() callback

Avoids giving freed pointers to hci_conn_valid(), which kmalloc may have
reused.

Hold refcount to avoid that.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- Kernel ≥ 7.1.8

## Referenzen

- <https://git.kernel.org/stable/c/e6792adef614b389141b142e30ee549e4a47dd7d>
- <https://git.kernel.org/stable/c/abf9753edf3f88282c44a605f3945d8d4f8dd86c>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-74528) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_