---
cve: "CVE-2026-74539"
severity: "HIGH"
cvss: 8.0
epss: "25%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-08-15 13:17:59"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-17T09:23:33+02:00"
---

# CVE-2026-74539

> 8.0 HIGH

## Beschreibung

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

Bluetooth: ISO: lock sk in iso_sock_getname

Accessing iso_pi(sk)->conn requires lock_sock, which is not held here.

Fix by adding the lock/release.

## 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 ≥ 6.18.44
- Kernel ≥ 7.1.8

## Referenzen

- <https://git.kernel.org/stable/c/72d5bb1d77d7c3330146dc0cfd43f704c64b9594>
- <https://git.kernel.org/stable/c/202670e6602e068558c1fca2df40719ee91a2906>
- <https://git.kernel.org/stable/c/89cf154d7c18e6e94a3da83051f3cf2bac317ae2>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-74539) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_